Home / 11,618.61-17,428.59-4,223.04

Finding the Fourth Proportional to 11,618.61, 17,428.59 and 4,223.04

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Solution

The fourth proportional to 11,618.61, 17,428.59 and 4,223.04 is: 6,334.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.61 : 17,428.59 = 4,223.04 : x
  2. Step 2: Convert to fraction form
    11,618.61/17,428.59 = 4,223.04/x
  3. Step 3: Cross multiply
    11,618.61x = 17,428.59 × 4,223.04
  4. Step 4: Simplify right side
    11,618.61x = 73,601,632.71
  5. Step 5: Solve for x
    x = 73,601,632.71/11,618.61
  6. Step 6: Final answer
    x = 6,334.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.