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Finding the Fourth Proportional to 8,959.32, 12,368.97 and 6,965.46

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Solution

The fourth proportional to 8,959.32, 12,368.97 and 6,965.46 is: 9,616.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.32 : 12,368.97 = 6,965.46 : x
  2. Step 2: Convert to fraction form
    8,959.32/12,368.97 = 6,965.46/x
  3. Step 3: Cross multiply
    8,959.32x = 12,368.97 × 6,965.46
  4. Step 4: Simplify right side
    8,959.32x = 86,155,565.78
  5. Step 5: Solve for x
    x = 86,155,565.78/8,959.32
  6. Step 6: Final answer
    x = 9,616.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.