Home / 14,728.61-20,318.76-8,756.88

Finding the Fourth Proportional to 14,728.61, 20,318.76 and 8,756.88

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Solution

The fourth proportional to 14,728.61, 20,318.76 and 8,756.88 is: 12,080.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.61 : 20,318.76 = 8,756.88 : x
  2. Step 2: Convert to fraction form
    14,728.61/20,318.76 = 8,756.88/x
  3. Step 3: Cross multiply
    14,728.61x = 20,318.76 × 8,756.88
  4. Step 4: Simplify right side
    14,728.61x = 177,928,943.07
  5. Step 5: Solve for x
    x = 177,928,943.07/14,728.61
  6. Step 6: Final answer
    x = 12,080.50

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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.