Home / 16,915.24-25,401.90-10,379.80

Finding the Fourth Proportional to 16,915.24, 25,401.90 and 10,379.80

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Solution

The fourth proportional to 16,915.24, 25,401.90 and 10,379.80 is: 15,587.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.24 : 25,401.90 = 10,379.80 : x
  2. Step 2: Convert to fraction form
    16,915.24/25,401.90 = 10,379.80/x
  3. Step 3: Cross multiply
    16,915.24x = 25,401.90 × 10,379.80
  4. Step 4: Simplify right side
    16,915.24x = 263,666,641.62
  5. Step 5: Solve for x
    x = 263,666,641.62/16,915.24
  6. Step 6: Final answer
    x = 15,587.52

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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.