Home / 12,530.67-18,784.96-6,281.78

Finding the Fourth Proportional to 12,530.67, 18,784.96 and 6,281.78

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Solution

The fourth proportional to 12,530.67, 18,784.96 and 6,281.78 is: 9,417.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530.67 : 18,784.96 = 6,281.78 : x
  2. Step 2: Convert to fraction form
    12,530.67/18,784.96 = 6,281.78/x
  3. Step 3: Cross multiply
    12,530.67x = 18,784.96 × 6,281.78
  4. Step 4: Simplify right side
    12,530.67x = 118,002,964.57
  5. Step 5: Solve for x
    x = 118,002,964.57/12,530.67
  6. Step 6: Final answer
    x = 9,417.13

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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.