Home / 10,381.61-15,553.76-6,674.64

Finding the Fourth Proportional to 10,381.61, 15,553.76 and 6,674.64

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Solution

The fourth proportional to 10,381.61, 15,553.76 and 6,674.64 is: 9,999.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,381.61 : 15,553.76 = 6,674.64 : x
  2. Step 2: Convert to fraction form
    10,381.61/15,553.76 = 6,674.64/x
  3. Step 3: Cross multiply
    10,381.61x = 15,553.76 × 6,674.64
  4. Step 4: Simplify right side
    10,381.61x = 103,815,715.27
  5. Step 5: Solve for x
    x = 103,815,715.27/10,381.61
  6. Step 6: Final answer
    x = 9,999.97

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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.