Home / 7,862.15-11,779.65-5,517.69

Finding the Fourth Proportional to 7,862.15, 11,779.65 and 5,517.69

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Solution

The fourth proportional to 7,862.15, 11,779.65 and 5,517.69 is: 8,267.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,862.15 : 11,779.65 = 5,517.69 : x
  2. Step 2: Convert to fraction form
    7,862.15/11,779.65 = 5,517.69/x
  3. Step 3: Cross multiply
    7,862.15x = 11,779.65 × 5,517.69
  4. Step 4: Simplify right side
    7,862.15x = 64,996,527.74
  5. Step 5: Solve for x
    x = 64,996,527.74/7,862.15
  6. Step 6: Final answer
    x = 8,267.02

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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.