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Finding the Fourth Proportional to 15,053.95, 20,774.17 and 9,085.87

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Solution

The fourth proportional to 15,053.95, 20,774.17 and 9,085.87 is: 12,538.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.95 : 20,774.17 = 9,085.87 : x
  2. Step 2: Convert to fraction form
    15,053.95/20,774.17 = 9,085.87/x
  3. Step 3: Cross multiply
    15,053.95x = 20,774.17 × 9,085.87
  4. Step 4: Simplify right side
    15,053.95x = 188,751,445.30
  5. Step 5: Solve for x
    x = 188,751,445.30/15,053.95
  6. Step 6: Final answer
    x = 12,538.33

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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.