Home / 25,661.07-38,491.61-8,129.53

Finding the Fourth Proportional to 25,661.07, 38,491.61 and 8,129.53

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Solution

The fourth proportional to 25,661.07, 38,491.61 and 8,129.53 is: 12,194.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,661.07 : 38,491.61 = 8,129.53 : x
  2. Step 2: Convert to fraction form
    25,661.07/38,491.61 = 8,129.53/x
  3. Step 3: Cross multiply
    25,661.07x = 38,491.61 × 8,129.53
  4. Step 4: Simplify right side
    25,661.07x = 312,918,705.71
  5. Step 5: Solve for x
    x = 312,918,705.71/25,661.07
  6. Step 6: Final answer
    x = 12,194.30

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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.