Home / 18,299.42-25,253.22-9,915.92

Finding the Fourth Proportional to 18,299.42, 25,253.22 and 9,915.92

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Solution

The fourth proportional to 18,299.42, 25,253.22 and 9,915.92 is: 13,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.42 : 25,253.22 = 9,915.92 : x
  2. Step 2: Convert to fraction form
    18,299.42/25,253.22 = 9,915.92/x
  3. Step 3: Cross multiply
    18,299.42x = 25,253.22 × 9,915.92
  4. Step 4: Simplify right side
    18,299.42x = 250,408,859.68
  5. Step 5: Solve for x
    x = 250,408,859.68/18,299.42
  6. Step 6: Final answer
    x = 13,683.98

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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.