Home / 9,438.30-13,023.72-5,188.66

Finding the Fourth Proportional to 9,438.30, 13,023.72 and 5,188.66

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Solution

The fourth proportional to 9,438.30, 13,023.72 and 5,188.66 is: 7,159.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.30 : 13,023.72 = 5,188.66 : x
  2. Step 2: Convert to fraction form
    9,438.30/13,023.72 = 5,188.66/x
  3. Step 3: Cross multiply
    9,438.30x = 13,023.72 × 5,188.66
  4. Step 4: Simplify right side
    9,438.30x = 67,575,655.02
  5. Step 5: Solve for x
    x = 67,575,655.02/9,438.30
  6. Step 6: Final answer
    x = 7,159.73

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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.