Home / 12,521.04-18,778.32-5,124.12

Finding the Fourth Proportional to 12,521.04, 18,778.32 and 5,124.12

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Solution

The fourth proportional to 12,521.04, 18,778.32 and 5,124.12 is: 7,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.04 : 18,778.32 = 5,124.12 : x
  2. Step 2: Convert to fraction form
    12,521.04/18,778.32 = 5,124.12/x
  3. Step 3: Cross multiply
    12,521.04x = 18,778.32 × 5,124.12
  4. Step 4: Simplify right side
    12,521.04x = 96,222,365.08
  5. Step 5: Solve for x
    x = 96,222,365.08/12,521.04
  6. Step 6: Final answer
    x = 7,684.85

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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.