Home / 18,752.07-28,128.15-4,712.13

Finding the Fourth Proportional to 18,752.07, 28,128.15 and 4,712.13

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Solution

The fourth proportional to 18,752.07, 28,128.15 and 4,712.13 is: 7,068.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,752.07 : 28,128.15 = 4,712.13 : x
  2. Step 2: Convert to fraction form
    18,752.07/28,128.15 = 4,712.13/x
  3. Step 3: Cross multiply
    18,752.07x = 28,128.15 × 4,712.13
  4. Step 4: Simplify right side
    18,752.07x = 132,543,527.52
  5. Step 5: Solve for x
    x = 132,543,527.52/18,752.07
  6. Step 6: Final answer
    x = 7,068.21

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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.