Home / 9,209.48-12,709.38-5,230.52

Finding the Fourth Proportional to 9,209.48, 12,709.38 and 5,230.52

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Solution

The fourth proportional to 9,209.48, 12,709.38 and 5,230.52 is: 7,218.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.48 : 12,709.38 = 5,230.52 : x
  2. Step 2: Convert to fraction form
    9,209.48/12,709.38 = 5,230.52/x
  3. Step 3: Cross multiply
    9,209.48x = 12,709.38 × 5,230.52
  4. Step 4: Simplify right side
    9,209.48x = 66,476,666.28
  5. Step 5: Solve for x
    x = 66,476,666.28/9,209.48
  6. Step 6: Final answer
    x = 7,218.29

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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.