Home / 10,419.10-14,371.42-6,435.12

Finding the Fourth Proportional to 10,419.10, 14,371.42 and 6,435.12

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Solution

The fourth proportional to 10,419.10, 14,371.42 and 6,435.12 is: 8,876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.10 : 14,371.42 = 6,435.12 : x
  2. Step 2: Convert to fraction form
    10,419.10/14,371.42 = 6,435.12/x
  3. Step 3: Cross multiply
    10,419.10x = 14,371.42 × 6,435.12
  4. Step 4: Simplify right side
    10,419.10x = 92,481,812.27
  5. Step 5: Solve for x
    x = 92,481,812.27/10,419.10
  6. Step 6: Final answer
    x = 8,876.18

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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.