Home / 18,919.22-26,108.52-10,966.06

Finding the Fourth Proportional to 18,919.22, 26,108.52 and 10,966.06

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Solution

The fourth proportional to 18,919.22, 26,108.52 and 10,966.06 is: 15,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.22 : 26,108.52 = 10,966.06 : x
  2. Step 2: Convert to fraction form
    18,919.22/26,108.52 = 10,966.06/x
  3. Step 3: Cross multiply
    18,919.22x = 26,108.52 × 10,966.06
  4. Step 4: Simplify right side
    18,919.22x = 286,307,531.56
  5. Step 5: Solve for x
    x = 286,307,531.56/18,919.22
  6. Step 6: Final answer
    x = 15,133.16

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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.