Home / 19,147.80-28,721.70-6,000.15

Finding the Fourth Proportional to 19,147.80, 28,721.70 and 6,000.15

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Solution

The fourth proportional to 19,147.80, 28,721.70 and 6,000.15 is: 9,000.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,147.80 : 28,721.70 = 6,000.15 : x
  2. Step 2: Convert to fraction form
    19,147.80/28,721.70 = 6,000.15/x
  3. Step 3: Cross multiply
    19,147.80x = 28,721.70 × 6,000.15
  4. Step 4: Simplify right side
    19,147.80x = 172,334,508.26
  5. Step 5: Solve for x
    x = 172,334,508.26/19,147.80
  6. Step 6: Final answer
    x = 9,000.23

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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.