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Finding the Fourth Proportional to 19,010.52, 28,492.02 and 9,147.15

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Solution

The fourth proportional to 19,010.52, 28,492.02 and 9,147.15 is: 13,709.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.52 : 28,492.02 = 9,147.15 : x
  2. Step 2: Convert to fraction form
    19,010.52/28,492.02 = 9,147.15/x
  3. Step 3: Cross multiply
    19,010.52x = 28,492.02 × 9,147.15
  4. Step 4: Simplify right side
    19,010.52x = 260,620,780.74
  5. Step 5: Solve for x
    x = 260,620,780.74/19,010.52
  6. Step 6: Final answer
    x = 13,709.29

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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.