Home / 12,558.47-17,333.08-8,309.62

Finding the Fourth Proportional to 12,558.47, 17,333.08 and 8,309.62

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Solution

The fourth proportional to 12,558.47, 17,333.08 and 8,309.62 is: 11,468.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.47 : 17,333.08 = 8,309.62 : x
  2. Step 2: Convert to fraction form
    12,558.47/17,333.08 = 8,309.62/x
  3. Step 3: Cross multiply
    12,558.47x = 17,333.08 × 8,309.62
  4. Step 4: Simplify right side
    12,558.47x = 144,031,221.56
  5. Step 5: Solve for x
    x = 144,031,221.56/12,558.47
  6. Step 6: Final answer
    x = 11,468.85

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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.