Home / 10,869.91-15,000.53-6,155.11

Finding the Fourth Proportional to 10,869.91, 15,000.53 and 6,155.11

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Solution

The fourth proportional to 10,869.91, 15,000.53 and 6,155.11 is: 8,494.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.91 : 15,000.53 = 6,155.11 : x
  2. Step 2: Convert to fraction form
    10,869.91/15,000.53 = 6,155.11/x
  3. Step 3: Cross multiply
    10,869.91x = 15,000.53 × 6,155.11
  4. Step 4: Simplify right side
    10,869.91x = 92,329,806.43
  5. Step 5: Solve for x
    x = 92,329,806.43/10,869.91
  6. Step 6: Final answer
    x = 8,494.08

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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.