Home / 9,509.25-13,122.81-5,317.50

Finding the Fourth Proportional to 9,509.25, 13,122.81 and 5,317.50

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Solution

The fourth proportional to 9,509.25, 13,122.81 and 5,317.50 is: 7,338.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.25 : 13,122.81 = 5,317.50 : x
  2. Step 2: Convert to fraction form
    9,509.25/13,122.81 = 5,317.50/x
  3. Step 3: Cross multiply
    9,509.25x = 13,122.81 × 5,317.50
  4. Step 4: Simplify right side
    9,509.25x = 69,780,542.18
  5. Step 5: Solve for x
    x = 69,780,542.18/9,509.25
  6. Step 6: Final answer
    x = 7,338.18

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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.