Home / 9,868.70-13,618.40-5,392.60

Finding the Fourth Proportional to 9,868.70, 13,618.40 and 5,392.60

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Solution

The fourth proportional to 9,868.70, 13,618.40 and 5,392.60 is: 7,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.70 : 13,618.40 = 5,392.60 : x
  2. Step 2: Convert to fraction form
    9,868.70/13,618.40 = 5,392.60/x
  3. Step 3: Cross multiply
    9,868.70x = 13,618.40 × 5,392.60
  4. Step 4: Simplify right side
    9,868.70x = 73,438,522.83
  5. Step 5: Solve for x
    x = 73,438,522.83/9,868.70
  6. Step 6: Final answer
    x = 7,441.56

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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.