Home / 18,936.35-26,129.09-10,977.02

Finding the Fourth Proportional to 18,936.35, 26,129.09 and 10,977.02

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Solution

The fourth proportional to 18,936.35, 26,129.09 and 10,977.02 is: 15,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936.35 : 26,129.09 = 10,977.02 : x
  2. Step 2: Convert to fraction form
    18,936.35/26,129.09 = 10,977.02/x
  3. Step 3: Cross multiply
    18,936.35x = 26,129.09 × 10,977.02
  4. Step 4: Simplify right side
    18,936.35x = 286,819,543.51
  5. Step 5: Solve for x
    x = 286,819,543.51/18,936.35
  6. Step 6: Final answer
    x = 15,146.51

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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.