Home / 9,438.05-13,023.38-5,188.41

Finding the Fourth Proportional to 9,438.05, 13,023.38 and 5,188.41

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Solution

The fourth proportional to 9,438.05, 13,023.38 and 5,188.41 is: 7,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.05 : 13,023.38 = 5,188.41 : x
  2. Step 2: Convert to fraction form
    9,438.05/13,023.38 = 5,188.41/x
  3. Step 3: Cross multiply
    9,438.05x = 13,023.38 × 5,188.41
  4. Step 4: Simplify right side
    9,438.05x = 67,570,609.08
  5. Step 5: Solve for x
    x = 67,570,609.08/9,438.05
  6. Step 6: Final answer
    x = 7,159.38

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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.