Home / 10,387.38-15,598.35-10,306.74

Finding the Fourth Proportional to 10,387.38, 15,598.35 and 10,306.74

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Solution

The fourth proportional to 10,387.38, 15,598.35 and 10,306.74 is: 15,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,387.38 : 15,598.35 = 10,306.74 : x
  2. Step 2: Convert to fraction form
    10,387.38/15,598.35 = 10,306.74/x
  3. Step 3: Cross multiply
    10,387.38x = 15,598.35 × 10,306.74
  4. Step 4: Simplify right side
    10,387.38x = 160,768,137.88
  5. Step 5: Solve for x
    x = 160,768,137.88/10,387.38
  6. Step 6: Final answer
    x = 15,477.26

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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.