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Finding the Fourth Proportional to 10,888.39, 15,025.95 and 5,920.39

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Solution

The fourth proportional to 10,888.39, 15,025.95 and 5,920.39 is: 8,170.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.39 : 15,025.95 = 5,920.39 : x
  2. Step 2: Convert to fraction form
    10,888.39/15,025.95 = 5,920.39/x
  3. Step 3: Cross multiply
    10,888.39x = 15,025.95 × 5,920.39
  4. Step 4: Simplify right side
    10,888.39x = 88,959,484.12
  5. Step 5: Solve for x
    x = 88,959,484.12/10,888.39
  6. Step 6: Final answer
    x = 8,170.12

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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.