Home / 18,521.92-25,558.63-10,455.13

Finding the Fourth Proportional to 18,521.92, 25,558.63 and 10,455.13

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Solution

The fourth proportional to 18,521.92, 25,558.63 and 10,455.13 is: 14,427.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.92 : 25,558.63 = 10,455.13 : x
  2. Step 2: Convert to fraction form
    18,521.92/25,558.63 = 10,455.13/x
  3. Step 3: Cross multiply
    18,521.92x = 25,558.63 × 10,455.13
  4. Step 4: Simplify right side
    18,521.92x = 267,218,799.27
  5. Step 5: Solve for x
    x = 267,218,799.27/18,521.92
  6. Step 6: Final answer
    x = 14,427.17

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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.