Home / 8,672.97-11,965.91-5,312.28

Finding the Fourth Proportional to 8,672.97, 11,965.91 and 5,312.28

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Solution

The fourth proportional to 8,672.97, 11,965.91 and 5,312.28 is: 7,329.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,672.97 : 11,965.91 = 5,312.28 : x
  2. Step 2: Convert to fraction form
    8,672.97/11,965.91 = 5,312.28/x
  3. Step 3: Cross multiply
    8,672.97x = 11,965.91 × 5,312.28
  4. Step 4: Simplify right side
    8,672.97x = 63,566,237.81
  5. Step 5: Solve for x
    x = 63,566,237.81/8,672.97
  6. Step 6: Final answer
    x = 7,329.24

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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.