Home / 15,311.75-22,970.89-5,316.80

Finding the Fourth Proportional to 15,311.75, 22,970.89 and 5,316.80

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Solution

The fourth proportional to 15,311.75, 22,970.89 and 5,316.80 is: 7,976.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,311.75 : 22,970.89 = 5,316.80 : x
  2. Step 2: Convert to fraction form
    15,311.75/22,970.89 = 5,316.80/x
  3. Step 3: Cross multiply
    15,311.75x = 22,970.89 × 5,316.80
  4. Step 4: Simplify right side
    15,311.75x = 122,131,648.95
  5. Step 5: Solve for x
    x = 122,131,648.95/15,311.75
  6. Step 6: Final answer
    x = 7,976.34

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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.