Home / 14,711.30-20,299.59-8,740.79

Finding the Fourth Proportional to 14,711.30, 20,299.59 and 8,740.79

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Solution

The fourth proportional to 14,711.30, 20,299.59 and 8,740.79 is: 12,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.30 : 20,299.59 = 8,740.79 : x
  2. Step 2: Convert to fraction form
    14,711.30/20,299.59 = 8,740.79/x
  3. Step 3: Cross multiply
    14,711.30x = 20,299.59 × 8,740.79
  4. Step 4: Simplify right side
    14,711.30x = 177,434,453.28
  5. Step 5: Solve for x
    x = 177,434,453.28/14,711.30
  6. Step 6: Final answer
    x = 12,061.10

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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.