Home / 7,458.13-11,189.54-3,077.65

Finding the Fourth Proportional to 7,458.13, 11,189.54 and 3,077.65

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Solution

The fourth proportional to 7,458.13, 11,189.54 and 3,077.65 is: 4,617.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.13 : 11,189.54 = 3,077.65 : x
  2. Step 2: Convert to fraction form
    7,458.13/11,189.54 = 3,077.65/x
  3. Step 3: Cross multiply
    7,458.13x = 11,189.54 × 3,077.65
  4. Step 4: Simplify right side
    7,458.13x = 34,437,487.78
  5. Step 5: Solve for x
    x = 34,437,487.78/7,458.13
  6. Step 6: Final answer
    x = 4,617.44

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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.