Home / 8,972.16-12,381.15-4,993.23

Finding the Fourth Proportional to 8,972.16, 12,381.15 and 4,993.23

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Solution

The fourth proportional to 8,972.16, 12,381.15 and 4,993.23 is: 6,890.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.16 : 12,381.15 = 4,993.23 : x
  2. Step 2: Convert to fraction form
    8,972.16/12,381.15 = 4,993.23/x
  3. Step 3: Cross multiply
    8,972.16x = 12,381.15 × 4,993.23
  4. Step 4: Simplify right side
    8,972.16x = 61,821,929.61
  5. Step 5: Solve for x
    x = 61,821,929.61/8,972.16
  6. Step 6: Final answer
    x = 6,890.42

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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.