Home / 9,955.45-13,737.63-5,479.39

Finding the Fourth Proportional to 9,955.45, 13,737.63 and 5,479.39

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Solution

The fourth proportional to 9,955.45, 13,737.63 and 5,479.39 is: 7,561.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.45 : 13,737.63 = 5,479.39 : x
  2. Step 2: Convert to fraction form
    9,955.45/13,737.63 = 5,479.39/x
  3. Step 3: Cross multiply
    9,955.45x = 13,737.63 × 5,479.39
  4. Step 4: Simplify right side
    9,955.45x = 75,273,832.45
  5. Step 5: Solve for x
    x = 75,273,832.45/9,955.45
  6. Step 6: Final answer
    x = 7,561.07

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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.