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Finding the Fourth Proportional to 19,073.64, 26,310.72 and 11,115

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Solution

The fourth proportional to 19,073.64, 26,310.72 and 11,115 is: 15,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,073.64 : 26,310.72 = 11,115 : x
  2. Step 2: Convert to fraction form
    19,073.64/26,310.72 = 11,115/x
  3. Step 3: Cross multiply
    19,073.64x = 26,310.72 × 11,115
  4. Step 4: Simplify right side
    19,073.64x = 292,443,652.80
  5. Step 5: Solve for x
    x = 292,443,652.80/19,073.64
  6. Step 6: Final answer
    x = 15,332.35

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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.