Home / 19,927.18-29,892.60-5,136.15

Finding the Fourth Proportional to 19,927.18, 29,892.60 and 5,136.15

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Solution

The fourth proportional to 19,927.18, 29,892.60 and 5,136.15 is: 7,704.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927.18 : 29,892.60 = 5,136.15 : x
  2. Step 2: Convert to fraction form
    19,927.18/29,892.60 = 5,136.15/x
  3. Step 3: Cross multiply
    19,927.18x = 29,892.60 × 5,136.15
  4. Step 4: Simplify right side
    19,927.18x = 153,532,877.49
  5. Step 5: Solve for x
    x = 153,532,877.49/19,927.18
  6. Step 6: Final answer
    x = 7,704.70

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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.