Home / 15,911.70-23,867.55-13,377.30

Finding the Fourth Proportional to 15,911.70, 23,867.55 and 13,377.30

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Solution

The fourth proportional to 15,911.70, 23,867.55 and 13,377.30 is: 20,065.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.70 : 23,867.55 = 13,377.30 : x
  2. Step 2: Convert to fraction form
    15,911.70/23,867.55 = 13,377.30/x
  3. Step 3: Cross multiply
    15,911.70x = 23,867.55 × 13,377.30
  4. Step 4: Simplify right side
    15,911.70x = 319,283,376.62
  5. Step 5: Solve for x
    x = 319,283,376.62/15,911.70
  6. Step 6: Final answer
    x = 20,065.95

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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.