Home / 13,228.38-19,708.02-12,601.44

Finding the Fourth Proportional to 13,228.38, 19,708.02 and 12,601.44

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Solution

The fourth proportional to 13,228.38, 19,708.02 and 12,601.44 is: 18,773.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.38 : 19,708.02 = 12,601.44 : x
  2. Step 2: Convert to fraction form
    13,228.38/19,708.02 = 12,601.44/x
  3. Step 3: Cross multiply
    13,228.38x = 19,708.02 × 12,601.44
  4. Step 4: Simplify right side
    13,228.38x = 248,349,431.55
  5. Step 5: Solve for x
    x = 248,349,431.55/13,228.38
  6. Step 6: Final answer
    x = 18,773.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.