Home / 15,917.64-21,966.60-9,204.78

Finding the Fourth Proportional to 15,917.64, 21,966.60 and 9,204.78

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Solution

The fourth proportional to 15,917.64, 21,966.60 and 9,204.78 is: 12,702.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.64 : 21,966.60 = 9,204.78 : x
  2. Step 2: Convert to fraction form
    15,917.64/21,966.60 = 9,204.78/x
  3. Step 3: Cross multiply
    15,917.64x = 21,966.60 × 9,204.78
  4. Step 4: Simplify right side
    15,917.64x = 202,197,720.35
  5. Step 5: Solve for x
    x = 202,197,720.35/15,917.64
  6. Step 6: Final answer
    x = 12,702.74

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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.