Home / 18,346.92-25,309.31-12,687.45

Finding the Fourth Proportional to 18,346.92, 25,309.31 and 12,687.45

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Solution

The fourth proportional to 18,346.92, 25,309.31 and 12,687.45 is: 17,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.92 : 25,309.31 = 12,687.45 : x
  2. Step 2: Convert to fraction form
    18,346.92/25,309.31 = 12,687.45/x
  3. Step 3: Cross multiply
    18,346.92x = 25,309.31 × 12,687.45
  4. Step 4: Simplify right side
    18,346.92x = 321,110,541.72
  5. Step 5: Solve for x
    x = 321,110,541.72/18,346.92
  6. Step 6: Final answer
    x = 17,502.15

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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.