Home / 9,867.55-13,617.49-5,391.27

Finding the Fourth Proportional to 9,867.55, 13,617.49 and 5,391.27

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Solution

The fourth proportional to 9,867.55, 13,617.49 and 5,391.27 is: 7,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.55 : 13,617.49 = 5,391.27 : x
  2. Step 2: Convert to fraction form
    9,867.55/13,617.49 = 5,391.27/x
  3. Step 3: Cross multiply
    9,867.55x = 13,617.49 × 5,391.27
  4. Step 4: Simplify right side
    9,867.55x = 73,415,565.31
  5. Step 5: Solve for x
    x = 73,415,565.31/9,867.55
  6. Step 6: Final answer
    x = 7,440.10

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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.