Home / 9,955.15-13,737.84-5,478.91

Finding the Fourth Proportional to 9,955.15, 13,737.84 and 5,478.91

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Solution

The fourth proportional to 9,955.15, 13,737.84 and 5,478.91 is: 7,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,955.15 : 13,737.84 = 5,478.91 : x
  2. Step 2: Convert to fraction form
    9,955.15/13,737.84 = 5,478.91/x
  3. Step 3: Cross multiply
    9,955.15x = 13,737.84 × 5,478.91
  4. Step 4: Simplify right side
    9,955.15x = 75,268,388.95
  5. Step 5: Solve for x
    x = 75,268,388.95/9,955.15
  6. Step 6: Final answer
    x = 7,560.75

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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.