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Finding the Fourth Proportional to 8,891.28, 13,317.48 and 7,044.48

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Solution

The fourth proportional to 8,891.28, 13,317.48 and 7,044.48 is: 10,551.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,891.28 : 13,317.48 = 7,044.48 : x
  2. Step 2: Convert to fraction form
    8,891.28/13,317.48 = 7,044.48/x
  3. Step 3: Cross multiply
    8,891.28x = 13,317.48 × 7,044.48
  4. Step 4: Simplify right side
    8,891.28x = 93,814,721.51
  5. Step 5: Solve for x
    x = 93,814,721.51/8,891.28
  6. Step 6: Final answer
    x = 10,551.32

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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.