Home / 19,120.38-28,693.53-7,432.08

Finding the Fourth Proportional to 19,120.38, 28,693.53 and 7,432.08

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Solution

The fourth proportional to 19,120.38, 28,693.53 and 7,432.08 is: 11,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.38 : 28,693.53 = 7,432.08 : x
  2. Step 2: Convert to fraction form
    19,120.38/28,693.53 = 7,432.08/x
  3. Step 3: Cross multiply
    19,120.38x = 28,693.53 × 7,432.08
  4. Step 4: Simplify right side
    19,120.38x = 213,252,610.44
  5. Step 5: Solve for x
    x = 213,252,610.44/19,120.38
  6. Step 6: Final answer
    x = 11,153.16

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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.