Home / 10,421.01-14,380.44-5,704.38

Finding the Fourth Proportional to 10,421.01, 14,380.44 and 5,704.38

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Solution

The fourth proportional to 10,421.01, 14,380.44 and 5,704.38 is: 7,871.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.01 : 14,380.44 = 5,704.38 : x
  2. Step 2: Convert to fraction form
    10,421.01/14,380.44 = 5,704.38/x
  3. Step 3: Cross multiply
    10,421.01x = 14,380.44 × 5,704.38
  4. Step 4: Simplify right side
    10,421.01x = 82,031,494.33
  5. Step 5: Solve for x
    x = 82,031,494.33/10,421.01
  6. Step 6: Final answer
    x = 7,871.74

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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.