Home / 15,766.54-21,761.54-9,055.69

Finding the Fourth Proportional to 15,766.54, 21,761.54 and 9,055.69

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Solution

The fourth proportional to 15,766.54, 21,761.54 and 9,055.69 is: 12,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,766.54 : 21,761.54 = 9,055.69 : x
  2. Step 2: Convert to fraction form
    15,766.54/21,761.54 = 9,055.69/x
  3. Step 3: Cross multiply
    15,766.54x = 21,761.54 × 9,055.69
  4. Step 4: Simplify right side
    15,766.54x = 197,065,760.16
  5. Step 5: Solve for x
    x = 197,065,760.16/15,766.54
  6. Step 6: Final answer
    x = 12,498.99

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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.