Home / 19,155.59-26,419.73-12,443.38

Finding the Fourth Proportional to 19,155.59, 26,419.73 and 12,443.38

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Solution

The fourth proportional to 19,155.59, 26,419.73 and 12,443.38 is: 17,162.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.59 : 26,419.73 = 12,443.38 : x
  2. Step 2: Convert to fraction form
    19,155.59/26,419.73 = 12,443.38/x
  3. Step 3: Cross multiply
    19,155.59x = 26,419.73 × 12,443.38
  4. Step 4: Simplify right side
    19,155.59x = 328,750,720.92
  5. Step 5: Solve for x
    x = 328,750,720.92/19,155.59
  6. Step 6: Final answer
    x = 17,162.13

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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.