Home / 9,218.16-12,721.32-5,239.08

Finding the Fourth Proportional to 9,218.16, 12,721.32 and 5,239.08

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Solution

The fourth proportional to 9,218.16, 12,721.32 and 5,239.08 is: 7,230.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,218.16 : 12,721.32 = 5,239.08 : x
  2. Step 2: Convert to fraction form
    9,218.16/12,721.32 = 5,239.08/x
  3. Step 3: Cross multiply
    9,218.16x = 12,721.32 × 5,239.08
  4. Step 4: Simplify right side
    9,218.16x = 66,648,013.19
  5. Step 5: Solve for x
    x = 66,648,013.19/9,218.16
  6. Step 6: Final answer
    x = 7,230.08

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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.