Home / 25,148.86-37,729.12-7,378.80

Finding the Fourth Proportional to 25,148.86, 37,729.12 and 7,378.80

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Solution

The fourth proportional to 25,148.86, 37,729.12 and 7,378.80 is: 11,069.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,148.86 : 37,729.12 = 7,378.80 : x
  2. Step 2: Convert to fraction form
    25,148.86/37,729.12 = 7,378.80/x
  3. Step 3: Cross multiply
    25,148.86x = 37,729.12 × 7,378.80
  4. Step 4: Simplify right side
    25,148.86x = 278,395,630.66
  5. Step 5: Solve for x
    x = 278,395,630.66/25,148.86
  6. Step 6: Final answer
    x = 11,069.91

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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.