Home / 15,285.58-21,084.39-11,042.87

Finding the Fourth Proportional to 15,285.58, 21,084.39 and 11,042.87

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Solution

The fourth proportional to 15,285.58, 21,084.39 and 11,042.87 is: 15,232.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.58 : 21,084.39 = 11,042.87 : x
  2. Step 2: Convert to fraction form
    15,285.58/21,084.39 = 11,042.87/x
  3. Step 3: Cross multiply
    15,285.58x = 21,084.39 × 11,042.87
  4. Step 4: Simplify right side
    15,285.58x = 232,832,189.10
  5. Step 5: Solve for x
    x = 232,832,189.10/15,285.58
  6. Step 6: Final answer
    x = 15,232.15

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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.