Home / 42,098.09-63,156.85-12,515.27

Finding the Fourth Proportional to 42,098.09, 63,156.85 and 12,515.27

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Solution

The fourth proportional to 42,098.09, 63,156.85 and 12,515.27 is: 18,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,098.09 : 63,156.85 = 12,515.27 : x
  2. Step 2: Convert to fraction form
    42,098.09/63,156.85 = 12,515.27/x
  3. Step 3: Cross multiply
    42,098.09x = 63,156.85 × 12,515.27
  4. Step 4: Simplify right side
    42,098.09x = 790,424,683.03
  5. Step 5: Solve for x
    x = 790,424,683.03/42,098.09
  6. Step 6: Final answer
    x = 18,775.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.