Home / 18,462.28-25,477.98-10,078.78

Finding the Fourth Proportional to 18,462.28, 25,477.98 and 10,078.78

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Solution

The fourth proportional to 18,462.28, 25,477.98 and 10,078.78 is: 13,908.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.28 : 25,477.98 = 10,078.78 : x
  2. Step 2: Convert to fraction form
    18,462.28/25,477.98 = 10,078.78/x
  3. Step 3: Cross multiply
    18,462.28x = 25,477.98 × 10,078.78
  4. Step 4: Simplify right side
    18,462.28x = 256,786,955.26
  5. Step 5: Solve for x
    x = 256,786,955.26/18,462.28
  6. Step 6: Final answer
    x = 13,908.73

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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.