Home / 10,127.30-15,268.88-9,945.86

Finding the Fourth Proportional to 10,127.30, 15,268.88 and 9,945.86

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Solution

The fourth proportional to 10,127.30, 15,268.88 and 9,945.86 is: 14,995.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,127.30 : 15,268.88 = 9,945.86 : x
  2. Step 2: Convert to fraction form
    10,127.30/15,268.88 = 9,945.86/x
  3. Step 3: Cross multiply
    10,127.30x = 15,268.88 × 9,945.86
  4. Step 4: Simplify right side
    10,127.30x = 151,862,142.84
  5. Step 5: Solve for x
    x = 151,862,142.84/10,127.30
  6. Step 6: Final answer
    x = 14,995.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.