Home / 8,690.24-11,990.50-5,862.85

Finding the Fourth Proportional to 8,690.24, 11,990.50 and 5,862.85

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Solution

The fourth proportional to 8,690.24, 11,990.50 and 5,862.85 is: 8,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,690.24 : 11,990.50 = 5,862.85 : x
  2. Step 2: Convert to fraction form
    8,690.24/11,990.50 = 5,862.85/x
  3. Step 3: Cross multiply
    8,690.24x = 11,990.50 × 5,862.85
  4. Step 4: Simplify right side
    8,690.24x = 70,298,458.29
  5. Step 5: Solve for x
    x = 70,298,458.29/8,690.24
  6. Step 6: Final answer
    x = 8,089.36

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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.