Home / 15,002.22-20,702.70-8,288.50

Finding the Fourth Proportional to 15,002.22, 20,702.70 and 8,288.50

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Solution

The fourth proportional to 15,002.22, 20,702.70 and 8,288.50 is: 11,437.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.22 : 20,702.70 = 8,288.50 : x
  2. Step 2: Convert to fraction form
    15,002.22/20,702.70 = 8,288.50/x
  3. Step 3: Cross multiply
    15,002.22x = 20,702.70 × 8,288.50
  4. Step 4: Simplify right side
    15,002.22x = 171,594,328.95
  5. Step 5: Solve for x
    x = 171,594,328.95/15,002.22
  6. Step 6: Final answer
    x = 11,437.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.