Home / 11,459.22-15,812.94-6,422.58

Finding the Fourth Proportional to 11,459.22, 15,812.94 and 6,422.58

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Solution

The fourth proportional to 11,459.22, 15,812.94 and 6,422.58 is: 8,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,459.22 : 15,812.94 = 6,422.58 : x
  2. Step 2: Convert to fraction form
    11,459.22/15,812.94 = 6,422.58/x
  3. Step 3: Cross multiply
    11,459.22x = 15,812.94 × 6,422.58
  4. Step 4: Simplify right side
    11,459.22x = 101,559,872.19
  5. Step 5: Solve for x
    x = 101,559,872.19/11,459.22
  6. Step 6: Final answer
    x = 8,862.72

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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.