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Finding the Fourth Proportional to 8,674.40, 12,952.18 and 7,508

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Solution

The fourth proportional to 8,674.40, 12,952.18 and 7,508 is: 11,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,674.40 : 12,952.18 = 7,508 : x
  2. Step 2: Convert to fraction form
    8,674.40/12,952.18 = 7,508/x
  3. Step 3: Cross multiply
    8,674.40x = 12,952.18 × 7,508
  4. Step 4: Simplify right side
    8,674.40x = 97,244,967.44
  5. Step 5: Solve for x
    x = 97,244,967.44/8,674.40
  6. Step 6: Final answer
    x = 11,210.57

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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.