Home / 8,972.16-12,372.90-5,988.12

Finding the Fourth Proportional to 8,972.16, 12,372.90 and 5,988.12

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Solution

The fourth proportional to 8,972.16, 12,372.90 and 5,988.12 is: 8,257.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.16 : 12,372.90 = 5,988.12 : x
  2. Step 2: Convert to fraction form
    8,972.16/12,372.90 = 5,988.12/x
  3. Step 3: Cross multiply
    8,972.16x = 12,372.90 × 5,988.12
  4. Step 4: Simplify right side
    8,972.16x = 74,090,409.95
  5. Step 5: Solve for x
    x = 74,090,409.95/8,972.16
  6. Step 6: Final answer
    x = 8,257.81

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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.