Home / 15,061.42-20,783.73-8,346.57

Finding the Fourth Proportional to 15,061.42, 20,783.73 and 8,346.57

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Solution

The fourth proportional to 15,061.42, 20,783.73 and 8,346.57 is: 11,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.42 : 20,783.73 = 8,346.57 : x
  2. Step 2: Convert to fraction form
    15,061.42/20,783.73 = 8,346.57/x
  3. Step 3: Cross multiply
    15,061.42x = 20,783.73 × 8,346.57
  4. Step 4: Simplify right side
    15,061.42x = 173,472,857.31
  5. Step 5: Solve for x
    x = 173,472,857.31/15,061.42
  6. Step 6: Final answer
    x = 11,517.70

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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.