Home / 9,377.24-12,942.74-5,400.64

Finding the Fourth Proportional to 9,377.24, 12,942.74 and 5,400.64

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Solution

The fourth proportional to 9,377.24, 12,942.74 and 5,400.64 is: 7,454.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,377.24 : 12,942.74 = 5,400.64 : x
  2. Step 2: Convert to fraction form
    9,377.24/12,942.74 = 5,400.64/x
  3. Step 3: Cross multiply
    9,377.24x = 12,942.74 × 5,400.64
  4. Step 4: Simplify right side
    9,377.24x = 69,899,079.35
  5. Step 5: Solve for x
    x = 69,899,079.35/9,377.24
  6. Step 6: Final answer
    x = 7,454.12

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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.