Home / 10,081.73-15,111.81-6,385.09

Finding the Fourth Proportional to 10,081.73, 15,111.81 and 6,385.09

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Solution

The fourth proportional to 10,081.73, 15,111.81 and 6,385.09 is: 9,570.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.73 : 15,111.81 = 6,385.09 : x
  2. Step 2: Convert to fraction form
    10,081.73/15,111.81 = 6,385.09/x
  3. Step 3: Cross multiply
    10,081.73x = 15,111.81 × 6,385.09
  4. Step 4: Simplify right side
    10,081.73x = 96,490,266.91
  5. Step 5: Solve for x
    x = 96,490,266.91/10,081.73
  6. Step 6: Final answer
    x = 9,570.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.