Home / 9,868.45-13,618.51-5,392.28

Finding the Fourth Proportional to 9,868.45, 13,618.51 and 5,392.28

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Solution

The fourth proportional to 9,868.45, 13,618.51 and 5,392.28 is: 7,441.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,868.45 : 13,618.51 = 5,392.28 : x
  2. Step 2: Convert to fraction form
    9,868.45/13,618.51 = 5,392.28/x
  3. Step 3: Cross multiply
    9,868.45x = 13,618.51 × 5,392.28
  4. Step 4: Simplify right side
    9,868.45x = 73,434,737.53
  5. Step 5: Solve for x
    x = 73,434,737.53/9,868.45
  6. Step 6: Final answer
    x = 7,441.37

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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.