Home / 12,721.39-19,076.02-5,701.46

Finding the Fourth Proportional to 12,721.39, 19,076.02 and 5,701.46

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Solution

The fourth proportional to 12,721.39, 19,076.02 and 5,701.46 is: 8,549.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.39 : 19,076.02 = 5,701.46 : x
  2. Step 2: Convert to fraction form
    12,721.39/19,076.02 = 5,701.46/x
  3. Step 3: Cross multiply
    12,721.39x = 19,076.02 × 5,701.46
  4. Step 4: Simplify right side
    12,721.39x = 108,761,242.37
  5. Step 5: Solve for x
    x = 108,761,242.37/12,721.39
  6. Step 6: Final answer
    x = 8,549.48

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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.