Home / 6,945.18-10,405.61-5,782.65

Finding the Fourth Proportional to 6,945.18, 10,405.61 and 5,782.65

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Solution

The fourth proportional to 6,945.18, 10,405.61 and 5,782.65 is: 8,663.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.18 : 10,405.61 = 5,782.65 : x
  2. Step 2: Convert to fraction form
    6,945.18/10,405.61 = 5,782.65/x
  3. Step 3: Cross multiply
    6,945.18x = 10,405.61 × 5,782.65
  4. Step 4: Simplify right side
    6,945.18x = 60,172,000.67
  5. Step 5: Solve for x
    x = 60,172,000.67/6,945.18
  6. Step 6: Final answer
    x = 8,663.85

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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.