Home / 7,272.56-10,912.84-4,356.40

Finding the Fourth Proportional to 7,272.56, 10,912.84 and 4,356.40

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Solution

The fourth proportional to 7,272.56, 10,912.84 and 4,356.40 is: 6,537.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,272.56 : 10,912.84 = 4,356.40 : x
  2. Step 2: Convert to fraction form
    7,272.56/10,912.84 = 4,356.40/x
  3. Step 3: Cross multiply
    7,272.56x = 10,912.84 × 4,356.40
  4. Step 4: Simplify right side
    7,272.56x = 47,540,696.18
  5. Step 5: Solve for x
    x = 47,540,696.18/7,272.56
  6. Step 6: Final answer
    x = 6,537.00

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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.