Home / 14,772.28-20,387.67-8,484.70

Finding the Fourth Proportional to 14,772.28, 20,387.67 and 8,484.70

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Solution

The fourth proportional to 14,772.28, 20,387.67 and 8,484.70 is: 11,709.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,772.28 : 20,387.67 = 8,484.70 : x
  2. Step 2: Convert to fraction form
    14,772.28/20,387.67 = 8,484.70/x
  3. Step 3: Cross multiply
    14,772.28x = 20,387.67 × 8,484.70
  4. Step 4: Simplify right side
    14,772.28x = 172,983,263.65
  5. Step 5: Solve for x
    x = 172,983,263.65/14,772.28
  6. Step 6: Final answer
    x = 11,709.99

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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.