Home / 7,480.42-10,335.81-5,920.36

Finding the Fourth Proportional to 7,480.42, 10,335.81 and 5,920.36

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Solution

The fourth proportional to 7,480.42, 10,335.81 and 5,920.36 is: 8,180.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.42 : 10,335.81 = 5,920.36 : x
  2. Step 2: Convert to fraction form
    7,480.42/10,335.81 = 5,920.36/x
  3. Step 3: Cross multiply
    7,480.42x = 10,335.81 × 5,920.36
  4. Step 4: Simplify right side
    7,480.42x = 61,191,716.09
  5. Step 5: Solve for x
    x = 61,191,716.09/7,480.42
  6. Step 6: Final answer
    x = 8,180.25

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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.