Home / 10,221.76-14,102.38-6,687.04

Finding the Fourth Proportional to 10,221.76, 14,102.38 and 6,687.04

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Solution

The fourth proportional to 10,221.76, 14,102.38 and 6,687.04 is: 9,225.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.76 : 14,102.38 = 6,687.04 : x
  2. Step 2: Convert to fraction form
    10,221.76/14,102.38 = 6,687.04/x
  3. Step 3: Cross multiply
    10,221.76x = 14,102.38 × 6,687.04
  4. Step 4: Simplify right side
    10,221.76x = 94,303,179.16
  5. Step 5: Solve for x
    x = 94,303,179.16/10,221.76
  6. Step 6: Final answer
    x = 9,225.73

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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.