Home / 18,977.50-26,186.95-11,018.17

Finding the Fourth Proportional to 18,977.50, 26,186.95 and 11,018.17

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Solution

The fourth proportional to 18,977.50, 26,186.95 and 11,018.17 is: 15,203.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.50 : 26,186.95 = 11,018.17 : x
  2. Step 2: Convert to fraction form
    18,977.50/26,186.95 = 11,018.17/x
  3. Step 3: Cross multiply
    18,977.50x = 26,186.95 × 11,018.17
  4. Step 4: Simplify right side
    18,977.50x = 288,532,266.88
  5. Step 5: Solve for x
    x = 288,532,266.88/18,977.50
  6. Step 6: Final answer
    x = 15,203.91

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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.