Home / 15,627.60-21,560.28-9,961.04

Finding the Fourth Proportional to 15,627.60, 21,560.28 and 9,961.04

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Solution

The fourth proportional to 15,627.60, 21,560.28 and 9,961.04 is: 13,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,627.60 : 21,560.28 = 9,961.04 : x
  2. Step 2: Convert to fraction form
    15,627.60/21,560.28 = 9,961.04/x
  3. Step 3: Cross multiply
    15,627.60x = 21,560.28 × 9,961.04
  4. Step 4: Simplify right side
    15,627.60x = 214,762,865.39
  5. Step 5: Solve for x
    x = 214,762,865.39/15,627.60
  6. Step 6: Final answer
    x = 13,742.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.