Home / 7,107.61-9,809.70-4,125.93

Finding the Fourth Proportional to 7,107.61, 9,809.70 and 4,125.93

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Solution

The fourth proportional to 7,107.61, 9,809.70 and 4,125.93 is: 5,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,107.61 : 9,809.70 = 4,125.93 : x
  2. Step 2: Convert to fraction form
    7,107.61/9,809.70 = 4,125.93/x
  3. Step 3: Cross multiply
    7,107.61x = 9,809.70 × 4,125.93
  4. Step 4: Simplify right side
    7,107.61x = 40,474,135.52
  5. Step 5: Solve for x
    x = 40,474,135.52/7,107.61
  6. Step 6: Final answer
    x = 5,694.48

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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.