Home / 19,278.91-26,604.74-10,781.05

Finding the Fourth Proportional to 19,278.91, 26,604.74 and 10,781.05

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Solution

The fourth proportional to 19,278.91, 26,604.74 and 10,781.05 is: 14,877.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.91 : 26,604.74 = 10,781.05 : x
  2. Step 2: Convert to fraction form
    19,278.91/26,604.74 = 10,781.05/x
  3. Step 3: Cross multiply
    19,278.91x = 26,604.74 × 10,781.05
  4. Step 4: Simplify right side
    19,278.91x = 286,826,899.15
  5. Step 5: Solve for x
    x = 286,826,899.15/19,278.91
  6. Step 6: Final answer
    x = 14,877.76

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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.