Home / 9,868.30-13,618.06-5,391.92

Finding the Fourth Proportional to 9,868.30, 13,618.06 and 5,391.92

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Solution

The fourth proportional to 9,868.30, 13,618.06 and 5,391.92 is: 7,440.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.30 : 13,618.06 = 5,391.92 : x
  2. Step 2: Convert to fraction form
    9,868.30/13,618.06 = 5,391.92/x
  3. Step 3: Cross multiply
    9,868.30x = 13,618.06 × 5,391.92
  4. Step 4: Simplify right side
    9,868.30x = 73,427,490.08
  5. Step 5: Solve for x
    x = 73,427,490.08/9,868.30
  6. Step 6: Final answer
    x = 7,440.74

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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.