Home / 12,240.81-18,321.50-6,610.65

Finding the Fourth Proportional to 12,240.81, 18,321.50 and 6,610.65

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Solution

The fourth proportional to 12,240.81, 18,321.50 and 6,610.65 is: 9,894.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.81 : 18,321.50 = 6,610.65 : x
  2. Step 2: Convert to fraction form
    12,240.81/18,321.50 = 6,610.65/x
  3. Step 3: Cross multiply
    12,240.81x = 18,321.50 × 6,610.65
  4. Step 4: Simplify right side
    12,240.81x = 121,116,990.92
  5. Step 5: Solve for x
    x = 121,116,990.92/12,240.81
  6. Step 6: Final answer
    x = 9,894.52

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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.