Home / 18,770.22-25,902.90-10,386.72

Finding the Fourth Proportional to 18,770.22, 25,902.90 and 10,386.72

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Solution

The fourth proportional to 18,770.22, 25,902.90 and 10,386.72 is: 14,333.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.22 : 25,902.90 = 10,386.72 : x
  2. Step 2: Convert to fraction form
    18,770.22/25,902.90 = 10,386.72/x
  3. Step 3: Cross multiply
    18,770.22x = 25,902.90 × 10,386.72
  4. Step 4: Simplify right side
    18,770.22x = 269,046,169.49
  5. Step 5: Solve for x
    x = 269,046,169.49/18,770.22
  6. Step 6: Final answer
    x = 14,333.67

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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.