Home / 7,417.24-11,129.54-3,468.78

Finding the Fourth Proportional to 7,417.24, 11,129.54 and 3,468.78

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Solution

The fourth proportional to 7,417.24, 11,129.54 and 3,468.78 is: 5,204.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.24 : 11,129.54 = 3,468.78 : x
  2. Step 2: Convert to fraction form
    7,417.24/11,129.54 = 3,468.78/x
  3. Step 3: Cross multiply
    7,417.24x = 11,129.54 × 3,468.78
  4. Step 4: Simplify right side
    7,417.24x = 38,605,908.42
  5. Step 5: Solve for x
    x = 38,605,908.42/7,417.24
  6. Step 6: Final answer
    x = 5,204.89

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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.