Home / 10,080.25-13,903.85-9,243.72

Finding the Fourth Proportional to 10,080.25, 13,903.85 and 9,243.72

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Solution

The fourth proportional to 10,080.25, 13,903.85 and 9,243.72 is: 12,750.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,080.25 : 13,903.85 = 9,243.72 : x
  2. Step 2: Convert to fraction form
    10,080.25/13,903.85 = 9,243.72/x
  3. Step 3: Cross multiply
    10,080.25x = 13,903.85 × 9,243.72
  4. Step 4: Simplify right side
    10,080.25x = 128,523,319.43
  5. Step 5: Solve for x
    x = 128,523,319.43/10,080.25
  6. Step 6: Final answer
    x = 12,750.02

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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.