Home / 19,000.88-28,507.56-9,138.86

Finding the Fourth Proportional to 19,000.88, 28,507.56 and 9,138.86

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Solution

The fourth proportional to 19,000.88, 28,507.56 and 9,138.86 is: 13,711.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,000.88 : 28,507.56 = 9,138.86 : x
  2. Step 2: Convert to fraction form
    19,000.88/28,507.56 = 9,138.86/x
  3. Step 3: Cross multiply
    19,000.88x = 28,507.56 × 9,138.86
  4. Step 4: Simplify right side
    19,000.88x = 260,526,599.78
  5. Step 5: Solve for x
    x = 260,526,599.78/19,000.88
  6. Step 6: Final answer
    x = 13,711.29

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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.