Home / 18,320.64-27,482.02-5,171.91

Finding the Fourth Proportional to 18,320.64, 27,482.02 and 5,171.91

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Solution

The fourth proportional to 18,320.64, 27,482.02 and 5,171.91 is: 7,758.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.64 : 27,482.02 = 5,171.91 : x
  2. Step 2: Convert to fraction form
    18,320.64/27,482.02 = 5,171.91/x
  3. Step 3: Cross multiply
    18,320.64x = 27,482.02 × 5,171.91
  4. Step 4: Simplify right side
    18,320.64x = 142,134,418.07
  5. Step 5: Solve for x
    x = 142,134,418.07/18,320.64
  6. Step 6: Final answer
    x = 7,758.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.