Home / 25,215.04-37,811.56-7,680.76

Finding the Fourth Proportional to 25,215.04, 37,811.56 and 7,680.76

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Solution

The fourth proportional to 25,215.04, 37,811.56 and 7,680.76 is: 11,517.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,215.04 : 37,811.56 = 7,680.76 : x
  2. Step 2: Convert to fraction form
    25,215.04/37,811.56 = 7,680.76/x
  3. Step 3: Cross multiply
    25,215.04x = 37,811.56 × 7,680.76
  4. Step 4: Simplify right side
    25,215.04x = 290,421,517.59
  5. Step 5: Solve for x
    x = 290,421,517.59/25,215.04
  6. Step 6: Final answer
    x = 11,517.79

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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.