Home / 7,108.36-9,807.15-4,123.11

Finding the Fourth Proportional to 7,108.36, 9,807.15 and 4,123.11

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Solution

The fourth proportional to 7,108.36, 9,807.15 and 4,123.11 is: 5,688.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.36 : 9,807.15 = 4,123.11 : x
  2. Step 2: Convert to fraction form
    7,108.36/9,807.15 = 4,123.11/x
  3. Step 3: Cross multiply
    7,108.36x = 9,807.15 × 4,123.11
  4. Step 4: Simplify right side
    7,108.36x = 40,435,958.24
  5. Step 5: Solve for x
    x = 40,435,958.24/7,108.36
  6. Step 6: Final answer
    x = 5,688.51

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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.