Home / 10,416.60-15,606.69-8,672.79

Finding the Fourth Proportional to 10,416.60, 15,606.69 and 8,672.79

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Solution

The fourth proportional to 10,416.60, 15,606.69 and 8,672.79 is: 12,994.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,416.60 : 15,606.69 = 8,672.79 : x
  2. Step 2: Convert to fraction form
    10,416.60/15,606.69 = 8,672.79/x
  3. Step 3: Cross multiply
    10,416.60x = 15,606.69 × 8,672.79
  4. Step 4: Simplify right side
    10,416.60x = 135,353,544.97
  5. Step 5: Solve for x
    x = 135,353,544.97/10,416.60
  6. Step 6: Final answer
    x = 12,994.02

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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.