Home / 15,146.73-20,903.85-8,433.86

Finding the Fourth Proportional to 15,146.73, 20,903.85 and 8,433.86

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Solution

The fourth proportional to 15,146.73, 20,903.85 and 8,433.86 is: 11,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.73 : 20,903.85 = 8,433.86 : x
  2. Step 2: Convert to fraction form
    15,146.73/20,903.85 = 8,433.86/x
  3. Step 3: Cross multiply
    15,146.73x = 20,903.85 × 8,433.86
  4. Step 4: Simplify right side
    15,146.73x = 176,300,039.84
  5. Step 5: Solve for x
    x = 176,300,039.84/15,146.73
  6. Step 6: Final answer
    x = 11,639.48

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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.