Home / 15,871.74-23,805.18-4,185.87

Finding the Fourth Proportional to 15,871.74, 23,805.18 and 4,185.87

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Solution

The fourth proportional to 15,871.74, 23,805.18 and 4,185.87 is: 6,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.74 : 23,805.18 = 4,185.87 : x
  2. Step 2: Convert to fraction form
    15,871.74/23,805.18 = 4,185.87/x
  3. Step 3: Cross multiply
    15,871.74x = 23,805.18 × 4,185.87
  4. Step 4: Simplify right side
    15,871.74x = 99,645,388.81
  5. Step 5: Solve for x
    x = 99,645,388.81/15,871.74
  6. Step 6: Final answer
    x = 6,278.16

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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.