Home / 18,830.16-25,983.06-11,274.76

Finding the Fourth Proportional to 18,830.16, 25,983.06 and 11,274.76

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Solution

The fourth proportional to 18,830.16, 25,983.06 and 11,274.76 is: 15,557.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.16 : 25,983.06 = 11,274.76 : x
  2. Step 2: Convert to fraction form
    18,830.16/25,983.06 = 11,274.76/x
  3. Step 3: Cross multiply
    18,830.16x = 25,983.06 × 11,274.76
  4. Step 4: Simplify right side
    18,830.16x = 292,952,765.57
  5. Step 5: Solve for x
    x = 292,952,765.57/18,830.16
  6. Step 6: Final answer
    x = 15,557.64

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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.