Home / 12,687-19,037.04-5,669.16

Finding the Fourth Proportional to 12,687, 19,037.04 and 5,669.16

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Solution

The fourth proportional to 12,687, 19,037.04 and 5,669.16 is: 8,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687 : 19,037.04 = 5,669.16 : x
  2. Step 2: Convert to fraction form
    12,687/19,037.04 = 5,669.16/x
  3. Step 3: Cross multiply
    12,687x = 19,037.04 × 5,669.16
  4. Step 4: Simplify right side
    12,687x = 107,924,025.69
  5. Step 5: Solve for x
    x = 107,924,025.69/12,687
  6. Step 6: Final answer
    x = 8,506.66

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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.