Home / 12,684.81-19,031.58-5,669.66

Finding the Fourth Proportional to 12,684.81, 19,031.58 and 5,669.66

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Solution

The fourth proportional to 12,684.81, 19,031.58 and 5,669.66 is: 8,506.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.81 : 19,031.58 = 5,669.66 : x
  2. Step 2: Convert to fraction form
    12,684.81/19,031.58 = 5,669.66/x
  3. Step 3: Cross multiply
    12,684.81x = 19,031.58 × 5,669.66
  4. Step 4: Simplify right side
    12,684.81x = 107,902,635.44
  5. Step 5: Solve for x
    x = 107,902,635.44/12,684.81
  6. Step 6: Final answer
    x = 8,506.44

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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.