Home / 15,532.16-21,433.61-8,816.88

Finding the Fourth Proportional to 15,532.16, 21,433.61 and 8,816.88

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Solution

The fourth proportional to 15,532.16, 21,433.61 and 8,816.88 is: 12,166.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.16 : 21,433.61 = 8,816.88 : x
  2. Step 2: Convert to fraction form
    15,532.16/21,433.61 = 8,816.88/x
  3. Step 3: Cross multiply
    15,532.16x = 21,433.61 × 8,816.88
  4. Step 4: Simplify right side
    15,532.16x = 188,977,669.76
  5. Step 5: Solve for x
    x = 188,977,669.76/15,532.16
  6. Step 6: Final answer
    x = 12,166.87

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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.