Home / 7,407.42-11,111.72-2,477.09

Finding the Fourth Proportional to 7,407.42, 11,111.72 and 2,477.09

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Solution

The fourth proportional to 7,407.42, 11,111.72 and 2,477.09 is: 3,715.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,407.42 : 11,111.72 = 2,477.09 : x
  2. Step 2: Convert to fraction form
    7,407.42/11,111.72 = 2,477.09/x
  3. Step 3: Cross multiply
    7,407.42x = 11,111.72 × 2,477.09
  4. Step 4: Simplify right side
    7,407.42x = 27,524,730.49
  5. Step 5: Solve for x
    x = 27,524,730.49/7,407.42
  6. Step 6: Final answer
    x = 3,715.83

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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.