Home / 8,225.12-12,339.51-3,840.19

Finding the Fourth Proportional to 8,225.12, 12,339.51 and 3,840.19

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Solution

The fourth proportional to 8,225.12, 12,339.51 and 3,840.19 is: 5,761.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,225.12 : 12,339.51 = 3,840.19 : x
  2. Step 2: Convert to fraction form
    8,225.12/12,339.51 = 3,840.19/x
  3. Step 3: Cross multiply
    8,225.12x = 12,339.51 × 3,840.19
  4. Step 4: Simplify right side
    8,225.12x = 47,386,017.66
  5. Step 5: Solve for x
    x = 47,386,017.66/8,225.12
  6. Step 6: Final answer
    x = 5,761.13

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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.