Home / 18,557.70-25,609.78-10,491.77

Finding the Fourth Proportional to 18,557.70, 25,609.78 and 10,491.77

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Solution

The fourth proportional to 18,557.70, 25,609.78 and 10,491.77 is: 14,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.70 : 25,609.78 = 10,491.77 : x
  2. Step 2: Convert to fraction form
    18,557.70/25,609.78 = 10,491.77/x
  3. Step 3: Cross multiply
    18,557.70x = 25,609.78 × 10,491.77
  4. Step 4: Simplify right side
    18,557.70x = 268,691,921.51
  5. Step 5: Solve for x
    x = 268,691,921.51/18,557.70
  6. Step 6: Final answer
    x = 14,478.73

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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.