Home / 17,348.64-26,015.66-12,639.30

Finding the Fourth Proportional to 17,348.64, 26,015.66 and 12,639.30

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Solution

The fourth proportional to 17,348.64, 26,015.66 and 12,639.30 is: 18,953.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,348.64 : 26,015.66 = 12,639.30 : x
  2. Step 2: Convert to fraction form
    17,348.64/26,015.66 = 12,639.30/x
  3. Step 3: Cross multiply
    17,348.64x = 26,015.66 × 12,639.30
  4. Step 4: Simplify right side
    17,348.64x = 328,819,731.44
  5. Step 5: Solve for x
    x = 328,819,731.44/17,348.64
  6. Step 6: Final answer
    x = 18,953.63

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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.