Home / 10,215.72-14,104.22-6,817.58

Finding the Fourth Proportional to 10,215.72, 14,104.22 and 6,817.58

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Solution

The fourth proportional to 10,215.72, 14,104.22 and 6,817.58 is: 9,412.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.72 : 14,104.22 = 6,817.58 : x
  2. Step 2: Convert to fraction form
    10,215.72/14,104.22 = 6,817.58/x
  3. Step 3: Cross multiply
    10,215.72x = 14,104.22 × 6,817.58
  4. Step 4: Simplify right side
    10,215.72x = 96,156,543.58
  5. Step 5: Solve for x
    x = 96,156,543.58/10,215.72
  6. Step 6: Final answer
    x = 9,412.61

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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.