Home / 18,819.96-25,971.72-10,860.62

Finding the Fourth Proportional to 18,819.96, 25,971.72 and 10,860.62

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Solution

The fourth proportional to 18,819.96, 25,971.72 and 10,860.62 is: 14,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.96 : 25,971.72 = 10,860.62 : x
  2. Step 2: Convert to fraction form
    18,819.96/25,971.72 = 10,860.62/x
  3. Step 3: Cross multiply
    18,819.96x = 25,971.72 × 10,860.62
  4. Step 4: Simplify right side
    18,819.96x = 282,068,981.67
  5. Step 5: Solve for x
    x = 282,068,981.67/18,819.96
  6. Step 6: Final answer
    x = 14,987.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.