Home / 12,646.11-17,451.68-7,341.15

Finding the Fourth Proportional to 12,646.11, 17,451.68 and 7,341.15

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Solution

The fourth proportional to 12,646.11, 17,451.68 and 7,341.15 is: 10,130.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.11 : 17,451.68 = 7,341.15 : x
  2. Step 2: Convert to fraction form
    12,646.11/17,451.68 = 7,341.15/x
  3. Step 3: Cross multiply
    12,646.11x = 17,451.68 × 7,341.15
  4. Step 4: Simplify right side
    12,646.11x = 128,115,363.93
  5. Step 5: Solve for x
    x = 128,115,363.93/12,646.11
  6. Step 6: Final answer
    x = 10,130.81

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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.