Home / 15,867.20-23,808.95-6,988.75

Finding the Fourth Proportional to 15,867.20, 23,808.95 and 6,988.75

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Solution

The fourth proportional to 15,867.20, 23,808.95 and 6,988.75 is: 10,486.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.20 : 23,808.95 = 6,988.75 : x
  2. Step 2: Convert to fraction form
    15,867.20/23,808.95 = 6,988.75/x
  3. Step 3: Cross multiply
    15,867.20x = 23,808.95 × 6,988.75
  4. Step 4: Simplify right side
    15,867.20x = 166,394,799.31
  5. Step 5: Solve for x
    x = 166,394,799.31/15,867.20
  6. Step 6: Final answer
    x = 10,486.71

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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.