Home / 15,135.20-22,702.80-4,746.96

Finding the Fourth Proportional to 15,135.20, 22,702.80 and 4,746.96

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Solution

The fourth proportional to 15,135.20, 22,702.80 and 4,746.96 is: 7,120.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.20 : 22,702.80 = 4,746.96 : x
  2. Step 2: Convert to fraction form
    15,135.20/22,702.80 = 4,746.96/x
  3. Step 3: Cross multiply
    15,135.20x = 22,702.80 × 4,746.96
  4. Step 4: Simplify right side
    15,135.20x = 107,769,283.49
  5. Step 5: Solve for x
    x = 107,769,283.49/15,135.20
  6. Step 6: Final answer
    x = 7,120.44

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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.