Home / 12,605.24-17,384.28-8,127.56

Finding the Fourth Proportional to 12,605.24, 17,384.28 and 8,127.56

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Solution

The fourth proportional to 12,605.24, 17,384.28 and 8,127.56 is: 11,208.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,605.24 : 17,384.28 = 8,127.56 : x
  2. Step 2: Convert to fraction form
    12,605.24/17,384.28 = 8,127.56/x
  3. Step 3: Cross multiply
    12,605.24x = 17,384.28 × 8,127.56
  4. Step 4: Simplify right side
    12,605.24x = 141,291,778.76
  5. Step 5: Solve for x
    x = 141,291,778.76/12,605.24
  6. Step 6: Final answer
    x = 11,208.97

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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.