Home / 9,085.28-12,538.13-5,107.64

Finding the Fourth Proportional to 9,085.28, 12,538.13 and 5,107.64

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Solution

The fourth proportional to 9,085.28, 12,538.13 and 5,107.64 is: 7,048.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,085.28 : 12,538.13 = 5,107.64 : x
  2. Step 2: Convert to fraction form
    9,085.28/12,538.13 = 5,107.64/x
  3. Step 3: Cross multiply
    9,085.28x = 12,538.13 × 5,107.64
  4. Step 4: Simplify right side
    9,085.28x = 64,040,166.08
  5. Step 5: Solve for x
    x = 64,040,166.08/9,085.28
  6. Step 6: Final answer
    x = 7,048.79

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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.