Home / 9,278.82-12,804.12-5,301.36

Finding the Fourth Proportional to 9,278.82, 12,804.12 and 5,301.36

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Solution

The fourth proportional to 9,278.82, 12,804.12 and 5,301.36 is: 7,315.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.82 : 12,804.12 = 5,301.36 : x
  2. Step 2: Convert to fraction form
    9,278.82/12,804.12 = 5,301.36/x
  3. Step 3: Cross multiply
    9,278.82x = 12,804.12 × 5,301.36
  4. Step 4: Simplify right side
    9,278.82x = 67,879,249.60
  5. Step 5: Solve for x
    x = 67,879,249.60/9,278.82
  6. Step 6: Final answer
    x = 7,315.50

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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.