Home / 8,702.40-13,053.60-3,509.04

Finding the Fourth Proportional to 8,702.40, 13,053.60 and 3,509.04

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Solution

The fourth proportional to 8,702.40, 13,053.60 and 3,509.04 is: 5,263.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.40 : 13,053.60 = 3,509.04 : x
  2. Step 2: Convert to fraction form
    8,702.40/13,053.60 = 3,509.04/x
  3. Step 3: Cross multiply
    8,702.40x = 13,053.60 × 3,509.04
  4. Step 4: Simplify right side
    8,702.40x = 45,805,604.54
  5. Step 5: Solve for x
    x = 45,805,604.54/8,702.40
  6. Step 6: Final answer
    x = 5,263.56

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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.