Home / 7,398.10-10,193.61-5,719.78

Finding the Fourth Proportional to 7,398.10, 10,193.61 and 5,719.78

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Solution

The fourth proportional to 7,398.10, 10,193.61 and 5,719.78 is: 7,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,398.10 : 10,193.61 = 5,719.78 : x
  2. Step 2: Convert to fraction form
    7,398.10/10,193.61 = 5,719.78/x
  3. Step 3: Cross multiply
    7,398.10x = 10,193.61 × 5,719.78
  4. Step 4: Simplify right side
    7,398.10x = 58,305,206.61
  5. Step 5: Solve for x
    x = 58,305,206.61/7,398.10
  6. Step 6: Final answer
    x = 7,881.11

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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.