Home / 9,955.49-13,738.55-5,479.29

Finding the Fourth Proportional to 9,955.49, 13,738.55 and 5,479.29

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Solution

The fourth proportional to 9,955.49, 13,738.55 and 5,479.29 is: 7,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.49 : 13,738.55 = 5,479.29 : x
  2. Step 2: Convert to fraction form
    9,955.49/13,738.55 = 5,479.29/x
  3. Step 3: Cross multiply
    9,955.49x = 13,738.55 × 5,479.29
  4. Step 4: Simplify right side
    9,955.49x = 75,277,472.23
  5. Step 5: Solve for x
    x = 75,277,472.23/9,955.49
  6. Step 6: Final answer
    x = 7,561.41

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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.