Home / 18,129.19-27,196.56-9,810.39

Finding the Fourth Proportional to 18,129.19, 27,196.56 and 9,810.39

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Solution

The fourth proportional to 18,129.19, 27,196.56 and 9,810.39 is: 14,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.19 : 27,196.56 = 9,810.39 : x
  2. Step 2: Convert to fraction form
    18,129.19/27,196.56 = 9,810.39/x
  3. Step 3: Cross multiply
    18,129.19x = 27,196.56 × 9,810.39
  4. Step 4: Simplify right side
    18,129.19x = 266,808,860.26
  5. Step 5: Solve for x
    x = 266,808,860.26/18,129.19
  6. Step 6: Final answer
    x = 14,717.09

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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.