Home / 15,660.77-23,478.78-7,766.00

Finding the Fourth Proportional to 15,660.77, 23,478.78 and 7,766.00

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Solution

The fourth proportional to 15,660.77, 23,478.78 and 7,766.00 is: 11,642.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,660.77 : 23,478.78 = 7,766.00 : x
  2. Step 2: Convert to fraction form
    15,660.77/23,478.78 = 7,766.00/x
  3. Step 3: Cross multiply
    15,660.77x = 23,478.78 × 7,766.00
  4. Step 4: Simplify right side
    15,660.77x = 182,336,088.09
  5. Step 5: Solve for x
    x = 182,336,088.09/15,660.77
  6. Step 6: Final answer
    x = 11,642.86

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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.