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Finding the Fourth Proportional to 17,959.70, 26,903.10 and 10,159.40

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Solution

The fourth proportional to 17,959.70, 26,903.10 and 10,159.40 is: 15,218.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,959.70 : 26,903.10 = 10,159.40 : x
  2. Step 2: Convert to fraction form
    17,959.70/26,903.10 = 10,159.40/x
  3. Step 3: Cross multiply
    17,959.70x = 26,903.10 × 10,159.40
  4. Step 4: Simplify right side
    17,959.70x = 273,319,354.14
  5. Step 5: Solve for x
    x = 273,319,354.14/17,959.70
  6. Step 6: Final answer
    x = 15,218.48

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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.