Home / 10,869.38-15,000.45-6,089.77

Finding the Fourth Proportional to 10,869.38, 15,000.45 and 6,089.77

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Solution

The fourth proportional to 10,869.38, 15,000.45 and 6,089.77 is: 8,404.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,869.38 : 15,000.45 = 6,089.77 : x
  2. Step 2: Convert to fraction form
    10,869.38/15,000.45 = 6,089.77/x
  3. Step 3: Cross multiply
    10,869.38x = 15,000.45 × 6,089.77
  4. Step 4: Simplify right side
    10,869.38x = 91,349,290.40
  5. Step 5: Solve for x
    x = 91,349,290.40/10,869.38
  6. Step 6: Final answer
    x = 8,404.28

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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.