Home / 7,278.75-10,034.51-6,155.19

Finding the Fourth Proportional to 7,278.75, 10,034.51 and 6,155.19

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Solution

The fourth proportional to 7,278.75, 10,034.51 and 6,155.19 is: 8,485.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,278.75 : 10,034.51 = 6,155.19 : x
  2. Step 2: Convert to fraction form
    7,278.75/10,034.51 = 6,155.19/x
  3. Step 3: Cross multiply
    7,278.75x = 10,034.51 × 6,155.19
  4. Step 4: Simplify right side
    7,278.75x = 61,764,284.83
  5. Step 5: Solve for x
    x = 61,764,284.83/7,278.75
  6. Step 6: Final answer
    x = 8,485.56

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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.