Home / 7,402.84-11,112.16-4,122.34

Finding the Fourth Proportional to 7,402.84, 11,112.16 and 4,122.34

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Solution

The fourth proportional to 7,402.84, 11,112.16 and 4,122.34 is: 6,187.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.84 : 11,112.16 = 4,122.34 : x
  2. Step 2: Convert to fraction form
    7,402.84/11,112.16 = 4,122.34/x
  3. Step 3: Cross multiply
    7,402.84x = 11,112.16 × 4,122.34
  4. Step 4: Simplify right side
    7,402.84x = 45,808,101.65
  5. Step 5: Solve for x
    x = 45,808,101.65/7,402.84
  6. Step 6: Final answer
    x = 6,187.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.