Home / 8,939.57-12,333.53-5,108.45

Finding the Fourth Proportional to 8,939.57, 12,333.53 and 5,108.45

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Solution

The fourth proportional to 8,939.57, 12,333.53 and 5,108.45 is: 7,047.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,939.57 : 12,333.53 = 5,108.45 : x
  2. Step 2: Convert to fraction form
    8,939.57/12,333.53 = 5,108.45/x
  3. Step 3: Cross multiply
    8,939.57x = 12,333.53 × 5,108.45
  4. Step 4: Simplify right side
    8,939.57x = 63,005,172.43
  5. Step 5: Solve for x
    x = 63,005,172.43/8,939.57
  6. Step 6: Final answer
    x = 7,047.90

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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.