Home / 14,844.81-20,486.21-8,130.72

Finding the Fourth Proportional to 14,844.81, 20,486.21 and 8,130.72

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Solution

The fourth proportional to 14,844.81, 20,486.21 and 8,130.72 is: 11,220.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,844.81 : 20,486.21 = 8,130.72 : x
  2. Step 2: Convert to fraction form
    14,844.81/20,486.21 = 8,130.72/x
  3. Step 3: Cross multiply
    14,844.81x = 20,486.21 × 8,130.72
  4. Step 4: Simplify right side
    14,844.81x = 166,567,596.72
  5. Step 5: Solve for x
    x = 166,567,596.72/14,844.81
  6. Step 6: Final answer
    x = 11,220.59

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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.