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Finding the Fourth Proportional to 13,159.30, 19,742.02 and 9,001.26

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Solution

The fourth proportional to 13,159.30, 19,742.02 and 9,001.26 is: 13,503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.30 : 19,742.02 = 9,001.26 : x
  2. Step 2: Convert to fraction form
    13,159.30/19,742.02 = 9,001.26/x
  3. Step 3: Cross multiply
    13,159.30x = 19,742.02 × 9,001.26
  4. Step 4: Simplify right side
    13,159.30x = 177,703,054.95
  5. Step 5: Solve for x
    x = 177,703,054.95/13,159.30
  6. Step 6: Final answer
    x = 13,503.99

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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.