Home / 14,753.55-20,357.31-8,784.24

Finding the Fourth Proportional to 14,753.55, 20,357.31 and 8,784.24

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Solution

The fourth proportional to 14,753.55, 20,357.31 and 8,784.24 is: 12,120.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,753.55 : 20,357.31 = 8,784.24 : x
  2. Step 2: Convert to fraction form
    14,753.55/20,357.31 = 8,784.24/x
  3. Step 3: Cross multiply
    14,753.55x = 20,357.31 × 8,784.24
  4. Step 4: Simplify right side
    14,753.55x = 178,823,496.79
  5. Step 5: Solve for x
    x = 178,823,496.79/14,753.55
  6. Step 6: Final answer
    x = 12,120.71

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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.