Home / 14,520.24-20,045.88-9,989.46

Finding the Fourth Proportional to 14,520.24, 20,045.88 and 9,989.46

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Solution

The fourth proportional to 14,520.24, 20,045.88 and 9,989.46 is: 13,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,520.24 : 20,045.88 = 9,989.46 : x
  2. Step 2: Convert to fraction form
    14,520.24/20,045.88 = 9,989.46/x
  3. Step 3: Cross multiply
    14,520.24x = 20,045.88 × 9,989.46
  4. Step 4: Simplify right side
    14,520.24x = 200,247,516.42
  5. Step 5: Solve for x
    x = 200,247,516.42/14,520.24
  6. Step 6: Final answer
    x = 13,790.92

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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.