Home / 10,929.96-15,079.78-6,452.20

Finding the Fourth Proportional to 10,929.96, 15,079.78 and 6,452.20

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Solution

The fourth proportional to 10,929.96, 15,079.78 and 6,452.20 is: 8,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.96 : 15,079.78 = 6,452.20 : x
  2. Step 2: Convert to fraction form
    10,929.96/15,079.78 = 6,452.20/x
  3. Step 3: Cross multiply
    10,929.96x = 15,079.78 × 6,452.20
  4. Step 4: Simplify right side
    10,929.96x = 97,297,756.52
  5. Step 5: Solve for x
    x = 97,297,756.52/10,929.96
  6. Step 6: Final answer
    x = 8,901.93

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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.