Home / 19,779.52-29,658.40-8,100.96

Finding the Fourth Proportional to 19,779.52, 29,658.40 and 8,100.96

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Solution

The fourth proportional to 19,779.52, 29,658.40 and 8,100.96 is: 12,146.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.52 : 29,658.40 = 8,100.96 : x
  2. Step 2: Convert to fraction form
    19,779.52/29,658.40 = 8,100.96/x
  3. Step 3: Cross multiply
    19,779.52x = 29,658.40 × 8,100.96
  4. Step 4: Simplify right side
    19,779.52x = 240,261,512.06
  5. Step 5: Solve for x
    x = 240,261,512.06/19,779.52
  6. Step 6: Final answer
    x = 12,146.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.