Home / 18,178.34-27,282.09-9,415.76

Finding the Fourth Proportional to 18,178.34, 27,282.09 and 9,415.76

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Solution

The fourth proportional to 18,178.34, 27,282.09 and 9,415.76 is: 14,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,178.34 : 27,282.09 = 9,415.76 : x
  2. Step 2: Convert to fraction form
    18,178.34/27,282.09 = 9,415.76/x
  3. Step 3: Cross multiply
    18,178.34x = 27,282.09 × 9,415.76
  4. Step 4: Simplify right side
    18,178.34x = 256,881,577.64
  5. Step 5: Solve for x
    x = 256,881,577.64/18,178.34
  6. Step 6: Final answer
    x = 14,131.19

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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.