Home / 10,418.64-14,360.64-6,431.04

Finding the Fourth Proportional to 10,418.64, 14,360.64 and 6,431.04

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Solution

The fourth proportional to 10,418.64, 14,360.64 and 6,431.04 is: 8,864.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,418.64 : 14,360.64 = 6,431.04 : x
  2. Step 2: Convert to fraction form
    10,418.64/14,360.64 = 6,431.04/x
  3. Step 3: Cross multiply
    10,418.64x = 14,360.64 × 6,431.04
  4. Step 4: Simplify right side
    10,418.64x = 92,353,850.27
  5. Step 5: Solve for x
    x = 92,353,850.27/10,418.64
  6. Step 6: Final answer
    x = 8,864.29

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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.