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Finding the Fourth Proportional to 8,959.64, 13,371.71 and 8,726.36

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Solution

The fourth proportional to 8,959.64, 13,371.71 and 8,726.36 is: 13,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.64 : 13,371.71 = 8,726.36 : x
  2. Step 2: Convert to fraction form
    8,959.64/13,371.71 = 8,726.36/x
  3. Step 3: Cross multiply
    8,959.64x = 13,371.71 × 8,726.36
  4. Step 4: Simplify right side
    8,959.64x = 116,686,244.79
  5. Step 5: Solve for x
    x = 116,686,244.79/8,959.64
  6. Step 6: Final answer
    x = 13,023.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.