Home / 7,421.53-11,132.29-1,874.89

Finding the Fourth Proportional to 7,421.53, 11,132.29 and 1,874.89

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Solution

The fourth proportional to 7,421.53, 11,132.29 and 1,874.89 is: 2,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.53 : 11,132.29 = 1,874.89 : x
  2. Step 2: Convert to fraction form
    7,421.53/11,132.29 = 1,874.89/x
  3. Step 3: Cross multiply
    7,421.53x = 11,132.29 × 1,874.89
  4. Step 4: Simplify right side
    7,421.53x = 20,871,758.85
  5. Step 5: Solve for x
    x = 20,871,758.85/7,421.53
  6. Step 6: Final answer
    x = 2,812.33

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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.