Home / 9,215.73-12,718.62-5,440.14

Finding the Fourth Proportional to 9,215.73, 12,718.62 and 5,440.14

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Solution

The fourth proportional to 9,215.73, 12,718.62 and 5,440.14 is: 7,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,215.73 : 12,718.62 = 5,440.14 : x
  2. Step 2: Convert to fraction form
    9,215.73/12,718.62 = 5,440.14/x
  3. Step 3: Cross multiply
    9,215.73x = 12,718.62 × 5,440.14
  4. Step 4: Simplify right side
    9,215.73x = 69,191,073.41
  5. Step 5: Solve for x
    x = 69,191,073.41/9,215.73
  6. Step 6: Final answer
    x = 7,507.93

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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.