Home / 12,519.89-17,277.66-6,854.55

Finding the Fourth Proportional to 12,519.89, 17,277.66 and 6,854.55

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Solution

The fourth proportional to 12,519.89, 17,277.66 and 6,854.55 is: 9,459.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,519.89 : 17,277.66 = 6,854.55 : x
  2. Step 2: Convert to fraction form
    12,519.89/17,277.66 = 6,854.55/x
  3. Step 3: Cross multiply
    12,519.89x = 17,277.66 × 6,854.55
  4. Step 4: Simplify right side
    12,519.89x = 118,430,463.69
  5. Step 5: Solve for x
    x = 118,430,463.69/12,519.89
  6. Step 6: Final answer
    x = 9,459.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.