Home / 9,091.34-12,542.78-5,313.15

Finding the Fourth Proportional to 9,091.34, 12,542.78 and 5,313.15

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Solution

The fourth proportional to 9,091.34, 12,542.78 and 5,313.15 is: 7,330.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,091.34 : 12,542.78 = 5,313.15 : x
  2. Step 2: Convert to fraction form
    9,091.34/12,542.78 = 5,313.15/x
  3. Step 3: Cross multiply
    9,091.34x = 12,542.78 × 5,313.15
  4. Step 4: Simplify right side
    9,091.34x = 66,641,644.99
  5. Step 5: Solve for x
    x = 66,641,644.99/9,091.34
  6. Step 6: Final answer
    x = 7,330.24

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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.