Home / 18,819.83-25,970.49-10,864.62

Finding the Fourth Proportional to 18,819.83, 25,970.49 and 10,864.62

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Solution

The fourth proportional to 18,819.83, 25,970.49 and 10,864.62 is: 14,992.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.83 : 25,970.49 = 10,864.62 : x
  2. Step 2: Convert to fraction form
    18,819.83/25,970.49 = 10,864.62/x
  3. Step 3: Cross multiply
    18,819.83x = 25,970.49 × 10,864.62
  4. Step 4: Simplify right side
    18,819.83x = 282,159,505.06
  5. Step 5: Solve for x
    x = 282,159,505.06/18,819.83
  6. Step 6: Final answer
    x = 14,992.67

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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.