Home / 15,083.67-20,814.52-9,111.81

Finding the Fourth Proportional to 15,083.67, 20,814.52 and 9,111.81

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Solution

The fourth proportional to 15,083.67, 20,814.52 and 9,111.81 is: 12,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,083.67 : 20,814.52 = 9,111.81 : x
  2. Step 2: Convert to fraction form
    15,083.67/20,814.52 = 9,111.81/x
  3. Step 3: Cross multiply
    15,083.67x = 20,814.52 × 9,111.81
  4. Step 4: Simplify right side
    15,083.67x = 189,657,951.48
  5. Step 5: Solve for x
    x = 189,657,951.48/15,083.67
  6. Step 6: Final answer
    x = 12,573.73

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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.