Home / 12,448.32-18,684.20-8,291.25

Finding the Fourth Proportional to 12,448.32, 18,684.20 and 8,291.25

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Solution

The fourth proportional to 12,448.32, 18,684.20 and 8,291.25 is: 12,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.32 : 18,684.20 = 8,291.25 : x
  2. Step 2: Convert to fraction form
    12,448.32/18,684.20 = 8,291.25/x
  3. Step 3: Cross multiply
    12,448.32x = 18,684.20 × 8,291.25
  4. Step 4: Simplify right side
    12,448.32x = 154,915,373.25
  5. Step 5: Solve for x
    x = 154,915,373.25/12,448.32
  6. Step 6: Final answer
    x = 12,444.68

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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.