Home / 10,006.40-13,808.84-5,469.15

Finding the Fourth Proportional to 10,006.40, 13,808.84 and 5,469.15

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Solution

The fourth proportional to 10,006.40, 13,808.84 and 5,469.15 is: 7,547.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,006.40 : 13,808.84 = 5,469.15 : x
  2. Step 2: Convert to fraction form
    10,006.40/13,808.84 = 5,469.15/x
  3. Step 3: Cross multiply
    10,006.40x = 13,808.84 × 5,469.15
  4. Step 4: Simplify right side
    10,006.40x = 75,522,589.94
  5. Step 5: Solve for x
    x = 75,522,589.94/10,006.40
  6. Step 6: Final answer
    x = 7,547.43

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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.