Home / 10,915.20-16,384.25-9,673.74

Finding the Fourth Proportional to 10,915.20, 16,384.25 and 9,673.74

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Solution

The fourth proportional to 10,915.20, 16,384.25 and 9,673.74 is: 14,520.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.20 : 16,384.25 = 9,673.74 : x
  2. Step 2: Convert to fraction form
    10,915.20/16,384.25 = 9,673.74/x
  3. Step 3: Cross multiply
    10,915.20x = 16,384.25 × 9,673.74
  4. Step 4: Simplify right side
    10,915.20x = 158,496,998.78
  5. Step 5: Solve for x
    x = 158,496,998.78/10,915.20
  6. Step 6: Final answer
    x = 14,520.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.