Home / 8,922.10-12,312.33-4,943.20

Finding the Fourth Proportional to 8,922.10, 12,312.33 and 4,943.20

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Solution

The fourth proportional to 8,922.10, 12,312.33 and 4,943.20 is: 6,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.10 : 12,312.33 = 4,943.20 : x
  2. Step 2: Convert to fraction form
    8,922.10/12,312.33 = 4,943.20/x
  3. Step 3: Cross multiply
    8,922.10x = 12,312.33 × 4,943.20
  4. Step 4: Simplify right side
    8,922.10x = 60,862,248.09
  5. Step 5: Solve for x
    x = 60,862,248.09/8,922.10
  6. Step 6: Final answer
    x = 6,821.52

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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.