Home / 17,618.41-26,428.15-5,138.13

Finding the Fourth Proportional to 17,618.41, 26,428.15 and 5,138.13

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Solution

The fourth proportional to 17,618.41, 26,428.15 and 5,138.13 is: 7,707.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,618.41 : 26,428.15 = 5,138.13 : x
  2. Step 2: Convert to fraction form
    17,618.41/26,428.15 = 5,138.13/x
  3. Step 3: Cross multiply
    17,618.41x = 26,428.15 × 5,138.13
  4. Step 4: Simplify right side
    17,618.41x = 135,791,270.36
  5. Step 5: Solve for x
    x = 135,791,270.36/17,618.41
  6. Step 6: Final answer
    x = 7,707.35

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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.