Home / 14,659.96-20,223.30-8,688.76

Finding the Fourth Proportional to 14,659.96, 20,223.30 and 8,688.76

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Solution

The fourth proportional to 14,659.96, 20,223.30 and 8,688.76 is: 11,986.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,659.96 : 20,223.30 = 8,688.76 : x
  2. Step 2: Convert to fraction form
    14,659.96/20,223.30 = 8,688.76/x
  3. Step 3: Cross multiply
    14,659.96x = 20,223.30 × 8,688.76
  4. Step 4: Simplify right side
    14,659.96x = 175,715,400.11
  5. Step 5: Solve for x
    x = 175,715,400.11/14,659.96
  6. Step 6: Final answer
    x = 11,986.08

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Half scale
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Double scale
Find fourth proportional to 14,660.96, 20,224.68 and 8,689.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.