Home / 9,332.96-12,879.75-5,354.78

Finding the Fourth Proportional to 9,332.96, 12,879.75 and 5,354.78

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Solution

The fourth proportional to 9,332.96, 12,879.75 and 5,354.78 is: 7,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.96 : 12,879.75 = 5,354.78 : x
  2. Step 2: Convert to fraction form
    9,332.96/12,879.75 = 5,354.78/x
  3. Step 3: Cross multiply
    9,332.96x = 12,879.75 × 5,354.78
  4. Step 4: Simplify right side
    9,332.96x = 68,968,227.71
  5. Step 5: Solve for x
    x = 68,968,227.71/9,332.96
  6. Step 6: Final answer
    x = 7,389.75

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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.