Home / 18,498.60-25,528.11-11,782.79

Finding the Fourth Proportional to 18,498.60, 25,528.11 and 11,782.79

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Solution

The fourth proportional to 18,498.60, 25,528.11 and 11,782.79 is: 16,260.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.60 : 25,528.11 = 11,782.79 : x
  2. Step 2: Convert to fraction form
    18,498.60/25,528.11 = 11,782.79/x
  3. Step 3: Cross multiply
    18,498.60x = 25,528.11 × 11,782.79
  4. Step 4: Simplify right side
    18,498.60x = 300,792,275.77
  5. Step 5: Solve for x
    x = 300,792,275.77/18,498.60
  6. Step 6: Final answer
    x = 16,260.28

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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.