Home / 14,956.61-20,639.86-8,150.69

Finding the Fourth Proportional to 14,956.61, 20,639.86 and 8,150.69

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Solution

The fourth proportional to 14,956.61, 20,639.86 and 8,150.69 is: 11,247.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,956.61 : 20,639.86 = 8,150.69 : x
  2. Step 2: Convert to fraction form
    14,956.61/20,639.86 = 8,150.69/x
  3. Step 3: Cross multiply
    14,956.61x = 20,639.86 × 8,150.69
  4. Step 4: Simplify right side
    14,956.61x = 168,229,059.75
  5. Step 5: Solve for x
    x = 168,229,059.75/14,956.61
  6. Step 6: Final answer
    x = 11,247.81

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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.