Home / 10,772.68-16,159.20-2,981.50

Finding the Fourth Proportional to 10,772.68, 16,159.20 and 2,981.50

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Solution

The fourth proportional to 10,772.68, 16,159.20 and 2,981.50 is: 4,472.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.68 : 16,159.20 = 2,981.50 : x
  2. Step 2: Convert to fraction form
    10,772.68/16,159.20 = 2,981.50/x
  3. Step 3: Cross multiply
    10,772.68x = 16,159.20 × 2,981.50
  4. Step 4: Simplify right side
    10,772.68x = 48,178,580.50
  5. Step 5: Solve for x
    x = 48,178,580.50/10,772.68
  6. Step 6: Final answer
    x = 4,472.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.