Home / 9,869.28-13,619.46-5,392.94

Finding the Fourth Proportional to 9,869.28, 13,619.46 and 5,392.94

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Solution

The fourth proportional to 9,869.28, 13,619.46 and 5,392.94 is: 7,442.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,869.28 : 13,619.46 = 5,392.94 : x
  2. Step 2: Convert to fraction form
    9,869.28/13,619.46 = 5,392.94/x
  3. Step 3: Cross multiply
    9,869.28x = 13,619.46 × 5,392.94
  4. Step 4: Simplify right side
    9,869.28x = 73,448,862.52
  5. Step 5: Solve for x
    x = 73,448,862.52/9,869.28
  6. Step 6: Final answer
    x = 7,442.17

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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.