Home / 14,779.52-20,379.12-12,082.40

Finding the Fourth Proportional to 14,779.52, 20,379.12 and 12,082.40

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Solution

The fourth proportional to 14,779.52, 20,379.12 and 12,082.40 is: 16,660.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,779.52 : 20,379.12 = 12,082.40 : x
  2. Step 2: Convert to fraction form
    14,779.52/20,379.12 = 12,082.40/x
  3. Step 3: Cross multiply
    14,779.52x = 20,379.12 × 12,082.40
  4. Step 4: Simplify right side
    14,779.52x = 246,228,679.49
  5. Step 5: Solve for x
    x = 246,228,679.49/14,779.52
  6. Step 6: Final answer
    x = 16,660.13

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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.