Home / 15,378.73-23,071.16-5,518.78

Finding the Fourth Proportional to 15,378.73, 23,071.16 and 5,518.78

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Solution

The fourth proportional to 15,378.73, 23,071.16 and 5,518.78 is: 8,279.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.73 : 23,071.16 = 5,518.78 : x
  2. Step 2: Convert to fraction form
    15,378.73/23,071.16 = 5,518.78/x
  3. Step 3: Cross multiply
    15,378.73x = 23,071.16 × 5,518.78
  4. Step 4: Simplify right side
    15,378.73x = 127,324,612.50
  5. Step 5: Solve for x
    x = 127,324,612.50/15,378.73
  6. Step 6: Final answer
    x = 8,279.27

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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.