Home / 7,919.75-10,929.63-4,563.08

Finding the Fourth Proportional to 7,919.75, 10,929.63 and 4,563.08

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Solution

The fourth proportional to 7,919.75, 10,929.63 and 4,563.08 is: 6,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,919.75 : 10,929.63 = 4,563.08 : x
  2. Step 2: Convert to fraction form
    7,919.75/10,929.63 = 4,563.08/x
  3. Step 3: Cross multiply
    7,919.75x = 10,929.63 × 4,563.08
  4. Step 4: Simplify right side
    7,919.75x = 49,872,721.41
  5. Step 5: Solve for x
    x = 49,872,721.41/7,919.75
  6. Step 6: Final answer
    x = 6,297.26

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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.