Home / 9,661.19-13,332.49-5,412.39

Finding the Fourth Proportional to 9,661.19, 13,332.49 and 5,412.39

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Solution

The fourth proportional to 9,661.19, 13,332.49 and 5,412.39 is: 7,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.19 : 13,332.49 = 5,412.39 : x
  2. Step 2: Convert to fraction form
    9,661.19/13,332.49 = 5,412.39/x
  3. Step 3: Cross multiply
    9,661.19x = 13,332.49 × 5,412.39
  4. Step 4: Simplify right side
    9,661.19x = 72,160,635.55
  5. Step 5: Solve for x
    x = 72,160,635.55/9,661.19
  6. Step 6: Final answer
    x = 7,469.12

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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.