Home / 9,509.17-13,122.68-5,317.42

Finding the Fourth Proportional to 9,509.17, 13,122.68 and 5,317.42

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Solution

The fourth proportional to 9,509.17, 13,122.68 and 5,317.42 is: 7,338.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.17 : 13,122.68 = 5,317.42 : x
  2. Step 2: Convert to fraction form
    9,509.17/13,122.68 = 5,317.42/x
  3. Step 3: Cross multiply
    9,509.17x = 13,122.68 × 5,317.42
  4. Step 4: Simplify right side
    9,509.17x = 69,778,801.09
  5. Step 5: Solve for x
    x = 69,778,801.09/9,509.17
  6. Step 6: Final answer
    x = 7,338.05

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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.