Home / 8,424.19-11,623.04-5,440.15

Finding the Fourth Proportional to 8,424.19, 11,623.04 and 5,440.15

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Solution

The fourth proportional to 8,424.19, 11,623.04 and 5,440.15 is: 7,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.19 : 11,623.04 = 5,440.15 : x
  2. Step 2: Convert to fraction form
    8,424.19/11,623.04 = 5,440.15/x
  3. Step 3: Cross multiply
    8,424.19x = 11,623.04 × 5,440.15
  4. Step 4: Simplify right side
    8,424.19x = 63,231,036.54
  5. Step 5: Solve for x
    x = 63,231,036.54/8,424.19
  6. Step 6: Final answer
    x = 7,505.89

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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.