Home / 10,948.20-15,107.61-6,472.14

Finding the Fourth Proportional to 10,948.20, 15,107.61 and 6,472.14

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Solution

The fourth proportional to 10,948.20, 15,107.61 and 6,472.14 is: 8,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.20 : 15,107.61 = 6,472.14 : x
  2. Step 2: Convert to fraction form
    10,948.20/15,107.61 = 6,472.14/x
  3. Step 3: Cross multiply
    10,948.20x = 15,107.61 × 6,472.14
  4. Step 4: Simplify right side
    10,948.20x = 97,778,566.99
  5. Step 5: Solve for x
    x = 97,778,566.99/10,948.20
  6. Step 6: Final answer
    x = 8,931.02

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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.