Home / 18,438.96-25,445.78-10,480.98

Finding the Fourth Proportional to 18,438.96, 25,445.78 and 10,480.98

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Solution

The fourth proportional to 18,438.96, 25,445.78 and 10,480.98 is: 14,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.96 : 25,445.78 = 10,480.98 : x
  2. Step 2: Convert to fraction form
    18,438.96/25,445.78 = 10,480.98/x
  3. Step 3: Cross multiply
    18,438.96x = 25,445.78 × 10,480.98
  4. Step 4: Simplify right side
    18,438.96x = 266,696,711.26
  5. Step 5: Solve for x
    x = 266,696,711.26/18,438.96
  6. Step 6: Final answer
    x = 14,463.76

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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.