Home / 15,811.74-23,729.30-7,491.78

Finding the Fourth Proportional to 15,811.74, 23,729.30 and 7,491.78

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Solution

The fourth proportional to 15,811.74, 23,729.30 and 7,491.78 is: 11,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,811.74 : 23,729.30 = 7,491.78 : x
  2. Step 2: Convert to fraction form
    15,811.74/23,729.30 = 7,491.78/x
  3. Step 3: Cross multiply
    15,811.74x = 23,729.30 × 7,491.78
  4. Step 4: Simplify right side
    15,811.74x = 177,774,695.15
  5. Step 5: Solve for x
    x = 177,774,695.15/15,811.74
  6. Step 6: Final answer
    x = 11,243.21

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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.