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Finding the Fourth Proportional to 13,080.71, 17,809.87 and 13,039.19

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Solution

The fourth proportional to 13,080.71, 17,809.87 and 13,039.19 is: 17,753.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.71 : 17,809.87 = 13,039.19 : x
  2. Step 2: Convert to fraction form
    13,080.71/17,809.87 = 13,039.19/x
  3. Step 3: Cross multiply
    13,080.71x = 17,809.87 × 13,039.19
  4. Step 4: Simplify right side
    13,080.71x = 232,226,157.16
  5. Step 5: Solve for x
    x = 232,226,157.16/13,080.71
  6. Step 6: Final answer
    x = 17,753.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.