Home / 13,128.24-19,670.44-9,225.66

Finding the Fourth Proportional to 13,128.24, 19,670.44 and 9,225.66

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Solution

The fourth proportional to 13,128.24, 19,670.44 and 9,225.66 is: 13,823.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.24 : 19,670.44 = 9,225.66 : x
  2. Step 2: Convert to fraction form
    13,128.24/19,670.44 = 9,225.66/x
  3. Step 3: Cross multiply
    13,128.24x = 19,670.44 × 9,225.66
  4. Step 4: Simplify right side
    13,128.24x = 181,472,791.49
  5. Step 5: Solve for x
    x = 181,472,791.49/13,128.24
  6. Step 6: Final answer
    x = 13,823.09

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1.5x scale

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.