Home / 9,780.38-13,496.85-5,304.14

Finding the Fourth Proportional to 9,780.38, 13,496.85 and 5,304.14

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Solution

The fourth proportional to 9,780.38, 13,496.85 and 5,304.14 is: 7,319.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.38 : 13,496.85 = 5,304.14 : x
  2. Step 2: Convert to fraction form
    9,780.38/13,496.85 = 5,304.14/x
  3. Step 3: Cross multiply
    9,780.38x = 13,496.85 × 5,304.14
  4. Step 4: Simplify right side
    9,780.38x = 71,589,181.96
  5. Step 5: Solve for x
    x = 71,589,181.96/9,780.38
  6. Step 6: Final answer
    x = 7,319.67

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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.