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Finding the Fourth Proportional to 18,919.41, 26,117.63 and 10,960.08

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Solution

The fourth proportional to 18,919.41, 26,117.63 and 10,960.08 is: 15,130.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,919.41 : 26,117.63 = 10,960.08 : x
  2. Step 2: Convert to fraction form
    18,919.41/26,117.63 = 10,960.08/x
  3. Step 3: Cross multiply
    18,919.41x = 26,117.63 × 10,960.08
  4. Step 4: Simplify right side
    18,919.41x = 286,251,314.21
  5. Step 5: Solve for x
    x = 286,251,314.21/18,919.41
  6. Step 6: Final answer
    x = 15,130.03

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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.