Home / 10,431.88-14,403.36-6,454.24

Finding the Fourth Proportional to 10,431.88, 14,403.36 and 6,454.24

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Solution

The fourth proportional to 10,431.88, 14,403.36 and 6,454.24 is: 8,911.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.88 : 14,403.36 = 6,454.24 : x
  2. Step 2: Convert to fraction form
    10,431.88/14,403.36 = 6,454.24/x
  3. Step 3: Cross multiply
    10,431.88x = 14,403.36 × 6,454.24
  4. Step 4: Simplify right side
    10,431.88x = 92,962,742.25
  5. Step 5: Solve for x
    x = 92,962,742.25/10,431.88
  6. Step 6: Final answer
    x = 8,911.41

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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.