Home / 19,147.80-28,717.23-7,302.90

Finding the Fourth Proportional to 19,147.80, 28,717.23 and 7,302.90

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Solution

The fourth proportional to 19,147.80, 28,717.23 and 7,302.90 is: 10,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.80 : 28,717.23 = 7,302.90 : x
  2. Step 2: Convert to fraction form
    19,147.80/28,717.23 = 7,302.90/x
  3. Step 3: Cross multiply
    19,147.80x = 28,717.23 × 7,302.90
  4. Step 4: Simplify right side
    19,147.80x = 209,719,058.97
  5. Step 5: Solve for x
    x = 209,719,058.97/19,147.80
  6. Step 6: Final answer
    x = 10,952.65

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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.