Home / 10,440.72-15,661.80-3,045.06

Finding the Fourth Proportional to 10,440.72, 15,661.80 and 3,045.06

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Solution

The fourth proportional to 10,440.72, 15,661.80 and 3,045.06 is: 4,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.72 : 15,661.80 = 3,045.06 : x
  2. Step 2: Convert to fraction form
    10,440.72/15,661.80 = 3,045.06/x
  3. Step 3: Cross multiply
    10,440.72x = 15,661.80 × 3,045.06
  4. Step 4: Simplify right side
    10,440.72x = 47,691,120.71
  5. Step 5: Solve for x
    x = 47,691,120.71/10,440.72
  6. Step 6: Final answer
    x = 4,567.80

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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.