Home / 15,704.57-21,671.97-8,534.40

Finding the Fourth Proportional to 15,704.57, 21,671.97 and 8,534.40

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Solution

The fourth proportional to 15,704.57, 21,671.97 and 8,534.40 is: 11,777.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.57 : 21,671.97 = 8,534.40 : x
  2. Step 2: Convert to fraction form
    15,704.57/21,671.97 = 8,534.40/x
  3. Step 3: Cross multiply
    15,704.57x = 21,671.97 × 8,534.40
  4. Step 4: Simplify right side
    15,704.57x = 184,957,260.77
  5. Step 5: Solve for x
    x = 184,957,260.77/15,704.57
  6. Step 6: Final answer
    x = 11,777.29

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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.