Home / 18,947.59-28,387.33-11,152.15

Finding the Fourth Proportional to 18,947.59, 28,387.33 and 11,152.15

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Solution

The fourth proportional to 18,947.59, 28,387.33 and 11,152.15 is: 16,708.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.59 : 28,387.33 = 11,152.15 : x
  2. Step 2: Convert to fraction form
    18,947.59/28,387.33 = 11,152.15/x
  3. Step 3: Cross multiply
    18,947.59x = 28,387.33 × 11,152.15
  4. Step 4: Simplify right side
    18,947.59x = 316,579,762.26
  5. Step 5: Solve for x
    x = 316,579,762.26/18,947.59
  6. Step 6: Final answer
    x = 16,708.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.