Home / 7,127.46-9,846.90-5,455.62

Finding the Fourth Proportional to 7,127.46, 9,846.90 and 5,455.62

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Solution

The fourth proportional to 7,127.46, 9,846.90 and 5,455.62 is: 7,537.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,127.46 : 9,846.90 = 5,455.62 : x
  2. Step 2: Convert to fraction form
    7,127.46/9,846.90 = 5,455.62/x
  3. Step 3: Cross multiply
    7,127.46x = 9,846.90 × 5,455.62
  4. Step 4: Simplify right side
    7,127.46x = 53,720,944.58
  5. Step 5: Solve for x
    x = 53,720,944.58/7,127.46
  6. Step 6: Final answer
    x = 7,537.18

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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.