Home / 9,332.91-12,878.37-5,355.33

Finding the Fourth Proportional to 9,332.91, 12,878.37 and 5,355.33

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Solution

The fourth proportional to 9,332.91, 12,878.37 and 5,355.33 is: 7,389.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.91 : 12,878.37 = 5,355.33 : x
  2. Step 2: Convert to fraction form
    9,332.91/12,878.37 = 5,355.33/x
  3. Step 3: Cross multiply
    9,332.91x = 12,878.37 × 5,355.33
  4. Step 4: Simplify right side
    9,332.91x = 68,967,921.21
  5. Step 5: Solve for x
    x = 68,967,921.21/9,332.91
  6. Step 6: Final answer
    x = 7,389.76

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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.