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Finding the Fourth Proportional to 8,987.50, 12,396.13 and 5,957.13

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Solution

The fourth proportional to 8,987.50, 12,396.13 and 5,957.13 is: 8,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.50 : 12,396.13 = 5,957.13 : x
  2. Step 2: Convert to fraction form
    8,987.50/12,396.13 = 5,957.13/x
  3. Step 3: Cross multiply
    8,987.50x = 12,396.13 × 5,957.13
  4. Step 4: Simplify right side
    8,987.50x = 73,845,343.01
  5. Step 5: Solve for x
    x = 73,845,343.01/8,987.50
  6. Step 6: Final answer
    x = 8,216.45

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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.