Home / 19,287.60-28,882.80-12,246.18

Finding the Fourth Proportional to 19,287.60, 28,882.80 and 12,246.18

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Solution

The fourth proportional to 19,287.60, 28,882.80 and 12,246.18 is: 18,338.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.60 : 28,882.80 = 12,246.18 : x
  2. Step 2: Convert to fraction form
    19,287.60/28,882.80 = 12,246.18/x
  3. Step 3: Cross multiply
    19,287.60x = 28,882.80 × 12,246.18
  4. Step 4: Simplify right side
    19,287.60x = 353,703,967.70
  5. Step 5: Solve for x
    x = 353,703,967.70/19,287.60
  6. Step 6: Final answer
    x = 18,338.41

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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.