Home / 14,990.67-20,685.07-8,617.59

Finding the Fourth Proportional to 14,990.67, 20,685.07 and 8,617.59

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Solution

The fourth proportional to 14,990.67, 20,685.07 and 8,617.59 is: 11,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.67 : 20,685.07 = 8,617.59 : x
  2. Step 2: Convert to fraction form
    14,990.67/20,685.07 = 8,617.59/x
  3. Step 3: Cross multiply
    14,990.67x = 20,685.07 × 8,617.59
  4. Step 4: Simplify right side
    14,990.67x = 178,255,463.15
  5. Step 5: Solve for x
    x = 178,255,463.15/14,990.67
  6. Step 6: Final answer
    x = 11,891.09

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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.