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Finding the Fourth Proportional to 9,125.51, 12,593.39 and 5,145.86

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Solution

The fourth proportional to 9,125.51, 12,593.39 and 5,145.86 is: 7,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.51 : 12,593.39 = 5,145.86 : x
  2. Step 2: Convert to fraction form
    9,125.51/12,593.39 = 5,145.86/x
  3. Step 3: Cross multiply
    9,125.51x = 12,593.39 × 5,145.86
  4. Step 4: Simplify right side
    9,125.51x = 64,803,733.17
  5. Step 5: Solve for x
    x = 64,803,733.17/9,125.51
  6. Step 6: Final answer
    x = 7,101.39

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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.