Home / 12,471.66-18,707.58-8,564.22

Finding the Fourth Proportional to 12,471.66, 18,707.58 and 8,564.22

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Solution

The fourth proportional to 12,471.66, 18,707.58 and 8,564.22 is: 12,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,471.66 : 18,707.58 = 8,564.22 : x
  2. Step 2: Convert to fraction form
    12,471.66/18,707.58 = 8,564.22/x
  3. Step 3: Cross multiply
    12,471.66x = 18,707.58 × 8,564.22
  4. Step 4: Simplify right side
    12,471.66x = 160,215,830.79
  5. Step 5: Solve for x
    x = 160,215,830.79/12,471.66
  6. Step 6: Final answer
    x = 12,846.39

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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.