Home / 18,819.34-25,966.54-10,859.87

Finding the Fourth Proportional to 18,819.34, 25,966.54 and 10,859.87

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Solution

The fourth proportional to 18,819.34, 25,966.54 and 10,859.87 is: 14,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,819.34 : 25,966.54 = 10,859.87 : x
  2. Step 2: Convert to fraction form
    18,819.34/25,966.54 = 10,859.87/x
  3. Step 3: Cross multiply
    18,819.34x = 25,966.54 × 10,859.87
  4. Step 4: Simplify right side
    18,819.34x = 281,993,327.24
  5. Step 5: Solve for x
    x = 281,993,327.24/18,819.34
  6. Step 6: Final answer
    x = 14,984.23

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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.