Home / 12,554.60-18,832.62-3,320.84

Finding the Fourth Proportional to 12,554.60, 18,832.62 and 3,320.84

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Solution

The fourth proportional to 12,554.60, 18,832.62 and 3,320.84 is: 4,981.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,554.60 : 18,832.62 = 3,320.84 : x
  2. Step 2: Convert to fraction form
    12,554.60/18,832.62 = 3,320.84/x
  3. Step 3: Cross multiply
    12,554.60x = 18,832.62 × 3,320.84
  4. Step 4: Simplify right side
    12,554.60x = 62,540,117.80
  5. Step 5: Solve for x
    x = 62,540,117.80/12,554.60
  6. Step 6: Final answer
    x = 4,981.45

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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.