Home / 8,912.40-13,365.90-3,717.06

Finding the Fourth Proportional to 8,912.40, 13,365.90 and 3,717.06

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Solution

The fourth proportional to 8,912.40, 13,365.90 and 3,717.06 is: 5,574.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.40 : 13,365.90 = 3,717.06 : x
  2. Step 2: Convert to fraction form
    8,912.40/13,365.90 = 3,717.06/x
  3. Step 3: Cross multiply
    8,912.40x = 13,365.90 × 3,717.06
  4. Step 4: Simplify right side
    8,912.40x = 49,681,894.96
  5. Step 5: Solve for x
    x = 49,681,894.96/8,912.40
  6. Step 6: Final answer
    x = 5,574.47

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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.