Home / 8,922.17-12,312.68-4,943.36

Finding the Fourth Proportional to 8,922.17, 12,312.68 and 4,943.36

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Solution

The fourth proportional to 8,922.17, 12,312.68 and 4,943.36 is: 6,821.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.17 : 12,312.68 = 4,943.36 : x
  2. Step 2: Convert to fraction form
    8,922.17/12,312.68 = 4,943.36/x
  3. Step 3: Cross multiply
    8,922.17x = 12,312.68 × 4,943.36
  4. Step 4: Simplify right side
    8,922.17x = 60,866,015.87
  5. Step 5: Solve for x
    x = 60,866,015.87/8,922.17
  6. Step 6: Final answer
    x = 6,821.88

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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.