Home / 15,865.20-23,805.95-6,986.75

Finding the Fourth Proportional to 15,865.20, 23,805.95 and 6,986.75

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Solution

The fourth proportional to 15,865.20, 23,805.95 and 6,986.75 is: 10,483.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.20 : 23,805.95 = 6,986.75 : x
  2. Step 2: Convert to fraction form
    15,865.20/23,805.95 = 6,986.75/x
  3. Step 3: Cross multiply
    15,865.20x = 23,805.95 × 6,986.75
  4. Step 4: Simplify right side
    15,865.20x = 166,326,067.20
  5. Step 5: Solve for x
    x = 166,326,067.20/15,865.20
  6. Step 6: Final answer
    x = 10,483.70

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1.5x scale

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.