Home / 9,217.35-12,719.70-5,238.63

Finding the Fourth Proportional to 9,217.35, 12,719.70 and 5,238.63

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Solution

The fourth proportional to 9,217.35, 12,719.70 and 5,238.63 is: 7,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217.35 : 12,719.70 = 5,238.63 : x
  2. Step 2: Convert to fraction form
    9,217.35/12,719.70 = 5,238.63/x
  3. Step 3: Cross multiply
    9,217.35x = 12,719.70 × 5,238.63
  4. Step 4: Simplify right side
    9,217.35x = 66,633,802.01
  5. Step 5: Solve for x
    x = 66,633,802.01/9,217.35
  6. Step 6: Final answer
    x = 7,229.17

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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.