Home / 7,487.42-11,239.32-3,107.93

Finding the Fourth Proportional to 7,487.42, 11,239.32 and 3,107.93

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Solution

The fourth proportional to 7,487.42, 11,239.32 and 3,107.93 is: 4,665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.42 : 11,239.32 = 3,107.93 : x
  2. Step 2: Convert to fraction form
    7,487.42/11,239.32 = 3,107.93/x
  3. Step 3: Cross multiply
    7,487.42x = 11,239.32 × 3,107.93
  4. Step 4: Simplify right side
    7,487.42x = 34,931,019.81
  5. Step 5: Solve for x
    x = 34,931,019.81/7,487.42
  6. Step 6: Final answer
    x = 4,665.29

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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.