Home / 9,869.05-13,619.47-5,392.99

Finding the Fourth Proportional to 9,869.05, 13,619.47 and 5,392.99

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Solution

The fourth proportional to 9,869.05, 13,619.47 and 5,392.99 is: 7,442.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.05 : 13,619.47 = 5,392.99 : x
  2. Step 2: Convert to fraction form
    9,869.05/13,619.47 = 5,392.99/x
  3. Step 3: Cross multiply
    9,869.05x = 13,619.47 × 5,392.99
  4. Step 4: Simplify right side
    9,869.05x = 73,449,617.98
  5. Step 5: Solve for x
    x = 73,449,617.98/9,869.05
  6. Step 6: Final answer
    x = 7,442.42

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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.