Home / 15,081.42-22,638.68-11,981.35

Finding the Fourth Proportional to 15,081.42, 22,638.68 and 11,981.35

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Solution

The fourth proportional to 15,081.42, 22,638.68 and 11,981.35 is: 17,985.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,081.42 : 22,638.68 = 11,981.35 : x
  2. Step 2: Convert to fraction form
    15,081.42/22,638.68 = 11,981.35/x
  3. Step 3: Cross multiply
    15,081.42x = 22,638.68 × 11,981.35
  4. Step 4: Simplify right side
    15,081.42x = 271,241,948.62
  5. Step 5: Solve for x
    x = 271,241,948.62/15,081.42
  6. Step 6: Final answer
    x = 17,985.17

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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.