Home / 8,669.45-12,998.70-4,776.59

Finding the Fourth Proportional to 8,669.45, 12,998.70 and 4,776.59

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Solution

The fourth proportional to 8,669.45, 12,998.70 and 4,776.59 is: 7,161.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.45 : 12,998.70 = 4,776.59 : x
  2. Step 2: Convert to fraction form
    8,669.45/12,998.70 = 4,776.59/x
  3. Step 3: Cross multiply
    8,669.45x = 12,998.70 × 4,776.59
  4. Step 4: Simplify right side
    8,669.45x = 62,089,492.93
  5. Step 5: Solve for x
    x = 62,089,492.93/8,669.45
  6. Step 6: Final answer
    x = 7,161.87

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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.