Home / 15,077.80-22,611.28-5,214.40

Finding the Fourth Proportional to 15,077.80, 22,611.28 and 5,214.40

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Solution

The fourth proportional to 15,077.80, 22,611.28 and 5,214.40 is: 7,819.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.80 : 22,611.28 = 5,214.40 : x
  2. Step 2: Convert to fraction form
    15,077.80/22,611.28 = 5,214.40/x
  3. Step 3: Cross multiply
    15,077.80x = 22,611.28 × 5,214.40
  4. Step 4: Simplify right side
    15,077.80x = 117,904,258.43
  5. Step 5: Solve for x
    x = 117,904,258.43/15,077.80
  6. Step 6: Final answer
    x = 7,819.73

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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.