Home / 9,518.48-13,135.34-5,326.72

Finding the Fourth Proportional to 9,518.48, 13,135.34 and 5,326.72

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Solution

The fourth proportional to 9,518.48, 13,135.34 and 5,326.72 is: 7,350.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.48 : 13,135.34 = 5,326.72 : x
  2. Step 2: Convert to fraction form
    9,518.48/13,135.34 = 5,326.72/x
  3. Step 3: Cross multiply
    9,518.48x = 13,135.34 × 5,326.72
  4. Step 4: Simplify right side
    9,518.48x = 69,968,278.28
  5. Step 5: Solve for x
    x = 69,968,278.28/9,518.48
  6. Step 6: Final answer
    x = 7,350.78

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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.