Home / 7,108.13-9,809.00-4,123.76

Finding the Fourth Proportional to 7,108.13, 9,809.00 and 4,123.76

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Solution

The fourth proportional to 7,108.13, 9,809.00 and 4,123.76 is: 5,690.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.13 : 9,809.00 = 4,123.76 : x
  2. Step 2: Convert to fraction form
    7,108.13/9,809.00 = 4,123.76/x
  3. Step 3: Cross multiply
    7,108.13x = 9,809.00 × 4,123.76
  4. Step 4: Simplify right side
    7,108.13x = 40,449,923.10
  5. Step 5: Solve for x
    x = 40,449,923.10/7,108.13
  6. Step 6: Final answer
    x = 5,690.66

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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.