Home / 18,947.88-28,417.50-9,585.18

Finding the Fourth Proportional to 18,947.88, 28,417.50 and 9,585.18

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Solution

The fourth proportional to 18,947.88, 28,417.50 and 9,585.18 is: 14,375.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947.88 : 28,417.50 = 9,585.18 : x
  2. Step 2: Convert to fraction form
    18,947.88/28,417.50 = 9,585.18/x
  3. Step 3: Cross multiply
    18,947.88x = 28,417.50 × 9,585.18
  4. Step 4: Simplify right side
    18,947.88x = 272,386,852.65
  5. Step 5: Solve for x
    x = 272,386,852.65/18,947.88
  6. Step 6: Final answer
    x = 14,375.58

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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.