Home / 9,518.40-13,135.41-5,326.65

Finding the Fourth Proportional to 9,518.40, 13,135.41 and 5,326.65

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Solution

The fourth proportional to 9,518.40, 13,135.41 and 5,326.65 is: 7,350.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,518.40 : 13,135.41 = 5,326.65 : x
  2. Step 2: Convert to fraction form
    9,518.40/13,135.41 = 5,326.65/x
  3. Step 3: Cross multiply
    9,518.40x = 13,135.41 × 5,326.65
  4. Step 4: Simplify right side
    9,518.40x = 69,967,731.68
  5. Step 5: Solve for x
    x = 69,967,731.68/9,518.40
  6. Step 6: Final answer
    x = 7,350.79

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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.