Home / 12,580.80-18,871.47-4,575.30

Finding the Fourth Proportional to 12,580.80, 18,871.47 and 4,575.30

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Solution

The fourth proportional to 12,580.80, 18,871.47 and 4,575.30 is: 6,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.80 : 18,871.47 = 4,575.30 : x
  2. Step 2: Convert to fraction form
    12,580.80/18,871.47 = 4,575.30/x
  3. Step 3: Cross multiply
    12,580.80x = 18,871.47 × 4,575.30
  4. Step 4: Simplify right side
    12,580.80x = 86,342,636.69
  5. Step 5: Solve for x
    x = 86,342,636.69/12,580.80
  6. Step 6: Final answer
    x = 6,863.05

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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.