Home / 18,996.77-26,190.97-13,017.76

Finding the Fourth Proportional to 18,996.77, 26,190.97 and 13,017.76

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Solution

The fourth proportional to 18,996.77, 26,190.97 and 13,017.76 is: 17,947.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,996.77 : 26,190.97 = 13,017.76 : x
  2. Step 2: Convert to fraction form
    18,996.77/26,190.97 = 13,017.76/x
  3. Step 3: Cross multiply
    18,996.77x = 26,190.97 × 13,017.76
  4. Step 4: Simplify right side
    18,996.77x = 340,947,663.61
  5. Step 5: Solve for x
    x = 340,947,663.61/18,996.77
  6. Step 6: Final answer
    x = 17,947.66

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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.