Home / 12,982.71-19,471.33-4,663.20

Finding the Fourth Proportional to 12,982.71, 19,471.33 and 4,663.20

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Solution

The fourth proportional to 12,982.71, 19,471.33 and 4,663.20 is: 6,993.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.71 : 19,471.33 = 4,663.20 : x
  2. Step 2: Convert to fraction form
    12,982.71/19,471.33 = 4,663.20/x
  3. Step 3: Cross multiply
    12,982.71x = 19,471.33 × 4,663.20
  4. Step 4: Simplify right side
    12,982.71x = 90,798,706.06
  5. Step 5: Solve for x
    x = 90,798,706.06/12,982.71
  6. Step 6: Final answer
    x = 6,993.82

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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.