Home / 9,217.16-12,717-5,238.20

Finding the Fourth Proportional to 9,217.16, 12,717 and 5,238.20

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Solution

The fourth proportional to 9,217.16, 12,717 and 5,238.20 is: 7,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.16 : 12,717 = 5,238.20 : x
  2. Step 2: Convert to fraction form
    9,217.16/12,717 = 5,238.20/x
  3. Step 3: Cross multiply
    9,217.16x = 12,717 × 5,238.20
  4. Step 4: Simplify right side
    9,217.16x = 66,614,189.40
  5. Step 5: Solve for x
    x = 66,614,189.40/9,217.16
  6. Step 6: Final answer
    x = 7,227.19

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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.