Home / 10,421.39-14,381.36-5,945.21

Finding the Fourth Proportional to 10,421.39, 14,381.36 and 5,945.21

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Solution

The fourth proportional to 10,421.39, 14,381.36 and 5,945.21 is: 8,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.39 : 14,381.36 = 5,945.21 : x
  2. Step 2: Convert to fraction form
    10,421.39/14,381.36 = 5,945.21/x
  3. Step 3: Cross multiply
    10,421.39x = 14,381.36 × 5,945.21
  4. Step 4: Simplify right side
    10,421.39x = 85,500,179.88
  5. Step 5: Solve for x
    x = 85,500,179.88/10,421.39
  6. Step 6: Final answer
    x = 8,204.30

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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.