Home / 15,130.62-20,851.45-11,098.57

Finding the Fourth Proportional to 15,130.62, 20,851.45 and 11,098.57

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Solution

The fourth proportional to 15,130.62, 20,851.45 and 11,098.57 is: 15,294.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,130.62 : 20,851.45 = 11,098.57 : x
  2. Step 2: Convert to fraction form
    15,130.62/20,851.45 = 11,098.57/x
  3. Step 3: Cross multiply
    15,130.62x = 20,851.45 × 11,098.57
  4. Step 4: Simplify right side
    15,130.62x = 231,421,267.86
  5. Step 5: Solve for x
    x = 231,421,267.86/15,130.62
  6. Step 6: Final answer
    x = 15,294.89

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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.