Home / 10,509.25-15,764.20-3,934.18

Finding the Fourth Proportional to 10,509.25, 15,764.20 and 3,934.18

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Solution

The fourth proportional to 10,509.25, 15,764.20 and 3,934.18 is: 5,901.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.25 : 15,764.20 = 3,934.18 : x
  2. Step 2: Convert to fraction form
    10,509.25/15,764.20 = 3,934.18/x
  3. Step 3: Cross multiply
    10,509.25x = 15,764.20 × 3,934.18
  4. Step 4: Simplify right side
    10,509.25x = 62,019,111.70
  5. Step 5: Solve for x
    x = 62,019,111.70/10,509.25
  6. Step 6: Final answer
    x = 5,901.39

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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.