Home / 18,208.16-25,127.60-10,251.20

Finding the Fourth Proportional to 18,208.16, 25,127.60 and 10,251.20

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Solution

The fourth proportional to 18,208.16, 25,127.60 and 10,251.20 is: 14,146.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.16 : 25,127.60 = 10,251.20 : x
  2. Step 2: Convert to fraction form
    18,208.16/25,127.60 = 10,251.20/x
  3. Step 3: Cross multiply
    18,208.16x = 25,127.60 × 10,251.20
  4. Step 4: Simplify right side
    18,208.16x = 257,588,053.12
  5. Step 5: Solve for x
    x = 257,588,053.12/18,208.16
  6. Step 6: Final answer
    x = 14,146.85

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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.