Home / 9,126.27-12,572.42-8,681.58

Finding the Fourth Proportional to 9,126.27, 12,572.42 and 8,681.58

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Solution

The fourth proportional to 9,126.27, 12,572.42 and 8,681.58 is: 11,959.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,126.27 : 12,572.42 = 8,681.58 : x
  2. Step 2: Convert to fraction form
    9,126.27/12,572.42 = 8,681.58/x
  3. Step 3: Cross multiply
    9,126.27x = 12,572.42 × 8,681.58
  4. Step 4: Simplify right side
    9,126.27x = 109,148,426.62
  5. Step 5: Solve for x
    x = 109,148,426.62/9,126.27
  6. Step 6: Final answer
    x = 11,959.81

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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.