Home / 7,790.03-11,685.12-6,239.87

Finding the Fourth Proportional to 7,790.03, 11,685.12 and 6,239.87

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Solution

The fourth proportional to 7,790.03, 11,685.12 and 6,239.87 is: 9,359.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790.03 : 11,685.12 = 6,239.87 : x
  2. Step 2: Convert to fraction form
    7,790.03/11,685.12 = 6,239.87/x
  3. Step 3: Cross multiply
    7,790.03x = 11,685.12 × 6,239.87
  4. Step 4: Simplify right side
    7,790.03x = 72,913,598.57
  5. Step 5: Solve for x
    x = 72,913,598.57/7,790.03
  6. Step 6: Final answer
    x = 9,359.86

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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.