Home / 10,456.16-15,682.10-8,712.42

Finding the Fourth Proportional to 10,456.16, 15,682.10 and 8,712.42

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Solution

The fourth proportional to 10,456.16, 15,682.10 and 8,712.42 is: 13,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,456.16 : 15,682.10 = 8,712.42 : x
  2. Step 2: Convert to fraction form
    10,456.16/15,682.10 = 8,712.42/x
  3. Step 3: Cross multiply
    10,456.16x = 15,682.10 × 8,712.42
  4. Step 4: Simplify right side
    10,456.16x = 136,628,998.12
  5. Step 5: Solve for x
    x = 136,628,998.12/10,456.16
  6. Step 6: Final answer
    x = 13,066.85

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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.