Home / 9,868.16-13,617.84-5,391.92

Finding the Fourth Proportional to 9,868.16, 13,617.84 and 5,391.92

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Solution

The fourth proportional to 9,868.16, 13,617.84 and 5,391.92 is: 7,440.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.16 : 13,617.84 = 5,391.92 : x
  2. Step 2: Convert to fraction form
    9,868.16/13,617.84 = 5,391.92/x
  3. Step 3: Cross multiply
    9,868.16x = 13,617.84 × 5,391.92
  4. Step 4: Simplify right side
    9,868.16x = 73,426,303.85
  5. Step 5: Solve for x
    x = 73,426,303.85/9,868.16
  6. Step 6: Final answer
    x = 7,440.73

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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.