Home / 9,278.99-12,805.53-5,504.39

Finding the Fourth Proportional to 9,278.99, 12,805.53 and 5,504.39

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Solution

The fourth proportional to 9,278.99, 12,805.53 and 5,504.39 is: 7,596.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.99 : 12,805.53 = 5,504.39 : x
  2. Step 2: Convert to fraction form
    9,278.99/12,805.53 = 5,504.39/x
  3. Step 3: Cross multiply
    9,278.99x = 12,805.53 × 5,504.39
  4. Step 4: Simplify right side
    9,278.99x = 70,486,631.28
  5. Step 5: Solve for x
    x = 70,486,631.28/9,278.99
  6. Step 6: Final answer
    x = 7,596.37

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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.