Home / 15,627.78-23,439.15-5,771.70

Finding the Fourth Proportional to 15,627.78, 23,439.15 and 5,771.70

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Solution

The fourth proportional to 15,627.78, 23,439.15 and 5,771.70 is: 8,656.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.78 : 23,439.15 = 5,771.70 : x
  2. Step 2: Convert to fraction form
    15,627.78/23,439.15 = 5,771.70/x
  3. Step 3: Cross multiply
    15,627.78x = 23,439.15 × 5,771.70
  4. Step 4: Simplify right side
    15,627.78x = 135,283,742.06
  5. Step 5: Solve for x
    x = 135,283,742.06/15,627.78
  6. Step 6: Final answer
    x = 8,656.62

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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.