Home / 9,115.03-12,578.74-4,923.28

Finding the Fourth Proportional to 9,115.03, 12,578.74 and 4,923.28

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Solution

The fourth proportional to 9,115.03, 12,578.74 and 4,923.28 is: 6,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,115.03 : 12,578.74 = 4,923.28 : x
  2. Step 2: Convert to fraction form
    9,115.03/12,578.74 = 4,923.28/x
  3. Step 3: Cross multiply
    9,115.03x = 12,578.74 × 4,923.28
  4. Step 4: Simplify right side
    9,115.03x = 61,928,690.18
  5. Step 5: Solve for x
    x = 61,928,690.18/9,115.03
  6. Step 6: Final answer
    x = 6,794.13

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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.