Home / 15,002.94-20,702.69-8,288.43

Finding the Fourth Proportional to 15,002.94, 20,702.69 and 8,288.43

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Solution

The fourth proportional to 15,002.94, 20,702.69 and 8,288.43 is: 11,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.94 : 20,702.69 = 8,288.43 : x
  2. Step 2: Convert to fraction form
    15,002.94/20,702.69 = 8,288.43/x
  3. Step 3: Cross multiply
    15,002.94x = 20,702.69 × 8,288.43
  4. Step 4: Simplify right side
    15,002.94x = 171,592,755.43
  5. Step 5: Solve for x
    x = 171,592,755.43/15,002.94
  6. Step 6: Final answer
    x = 11,437.28

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1.5x scale

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.