Home / 10,010.79-13,815.15-5,534.61

Finding the Fourth Proportional to 10,010.79, 13,815.15 and 5,534.61

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Solution

The fourth proportional to 10,010.79, 13,815.15 and 5,534.61 is: 7,637.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,010.79 : 13,815.15 = 5,534.61 : x
  2. Step 2: Convert to fraction form
    10,010.79/13,815.15 = 5,534.61/x
  3. Step 3: Cross multiply
    10,010.79x = 13,815.15 × 5,534.61
  4. Step 4: Simplify right side
    10,010.79x = 76,461,439.67
  5. Step 5: Solve for x
    x = 76,461,439.67/10,010.79
  6. Step 6: Final answer
    x = 7,637.90

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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.