Home / 9,879.05-13,632.67-5,402.65

Finding the Fourth Proportional to 9,879.05, 13,632.67 and 5,402.65

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Solution

The fourth proportional to 9,879.05, 13,632.67 and 5,402.65 is: 7,455.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.05 : 13,632.67 = 5,402.65 : x
  2. Step 2: Convert to fraction form
    9,879.05/13,632.67 = 5,402.65/x
  3. Step 3: Cross multiply
    9,879.05x = 13,632.67 × 5,402.65
  4. Step 4: Simplify right side
    9,879.05x = 73,652,544.58
  5. Step 5: Solve for x
    x = 73,652,544.58/9,879.05
  6. Step 6: Final answer
    x = 7,455.43

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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.