Home / 8,862.84-12,226.68-5,320.08

Finding the Fourth Proportional to 8,862.84, 12,226.68 and 5,320.08

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Solution

The fourth proportional to 8,862.84, 12,226.68 and 5,320.08 is: 7,339.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.84 : 12,226.68 = 5,320.08 : x
  2. Step 2: Convert to fraction form
    8,862.84/12,226.68 = 5,320.08/x
  3. Step 3: Cross multiply
    8,862.84x = 12,226.68 × 5,320.08
  4. Step 4: Simplify right side
    8,862.84x = 65,046,915.73
  5. Step 5: Solve for x
    x = 65,046,915.73/8,862.84
  6. Step 6: Final answer
    x = 7,339.29

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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.