Home / 8,431.10-11,625.80-5,744.06

Finding the Fourth Proportional to 8,431.10, 11,625.80 and 5,744.06

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Solution

The fourth proportional to 8,431.10, 11,625.80 and 5,744.06 is: 7,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,431.10 : 11,625.80 = 5,744.06 : x
  2. Step 2: Convert to fraction form
    8,431.10/11,625.80 = 5,744.06/x
  3. Step 3: Cross multiply
    8,431.10x = 11,625.80 × 5,744.06
  4. Step 4: Simplify right side
    8,431.10x = 66,779,336.17
  5. Step 5: Solve for x
    x = 66,779,336.17/8,431.10
  6. Step 6: Final answer
    x = 7,920.59

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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.