Home / 10,431.90-14,388.62-6,454.89

Finding the Fourth Proportional to 10,431.90, 14,388.62 and 6,454.89

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Solution

The fourth proportional to 10,431.90, 14,388.62 and 6,454.89 is: 8,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.90 : 14,388.62 = 6,454.89 : x
  2. Step 2: Convert to fraction form
    10,431.90/14,388.62 = 6,454.89/x
  3. Step 3: Cross multiply
    10,431.90x = 14,388.62 × 6,454.89
  4. Step 4: Simplify right side
    10,431.90x = 92,876,927.08
  5. Step 5: Solve for x
    x = 92,876,927.08/10,431.90
  6. Step 6: Final answer
    x = 8,903.17

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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.