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Finding the Fourth Proportional to 15,054.16, 20,775.52 and 8,340.52

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Solution

The fourth proportional to 15,054.16, 20,775.52 and 8,340.52 is: 11,510.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,054.16 : 20,775.52 = 8,340.52 : x
  2. Step 2: Convert to fraction form
    15,054.16/20,775.52 = 8,340.52/x
  3. Step 3: Cross multiply
    15,054.16x = 20,775.52 × 8,340.52
  4. Step 4: Simplify right side
    15,054.16x = 173,278,640.07
  5. Step 5: Solve for x
    x = 173,278,640.07/15,054.16
  6. Step 6: Final answer
    x = 11,510.35

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Double scale
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Similar ratio
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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.