Home / 7,338.15-10,987.78-4,412.43

Finding the Fourth Proportional to 7,338.15, 10,987.78 and 4,412.43

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Solution

The fourth proportional to 7,338.15, 10,987.78 and 4,412.43 is: 6,606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.15 : 10,987.78 = 4,412.43 : x
  2. Step 2: Convert to fraction form
    7,338.15/10,987.78 = 4,412.43/x
  3. Step 3: Cross multiply
    7,338.15x = 10,987.78 × 4,412.43
  4. Step 4: Simplify right side
    7,338.15x = 48,482,810.11
  5. Step 5: Solve for x
    x = 48,482,810.11/7,338.15
  6. Step 6: Final answer
    x = 6,606.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.