Home / 18,212.44-25,130.94-10,555.67

Finding the Fourth Proportional to 18,212.44, 25,130.94 and 10,555.67

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Solution

The fourth proportional to 18,212.44, 25,130.94 and 10,555.67 is: 14,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.44 : 25,130.94 = 10,555.67 : x
  2. Step 2: Convert to fraction form
    18,212.44/25,130.94 = 10,555.67/x
  3. Step 3: Cross multiply
    18,212.44x = 25,130.94 × 10,555.67
  4. Step 4: Simplify right side
    18,212.44x = 265,273,909.43
  5. Step 5: Solve for x
    x = 265,273,909.43/18,212.44
  6. Step 6: Final answer
    x = 14,565.53

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Half scale
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Double scale
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Similar ratio
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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.