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Finding the Fourth Proportional to 9,505.78, 13,117.73 and 5,256.73

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Solution

The fourth proportional to 9,505.78, 13,117.73 and 5,256.73 is: 7,254.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,505.78 : 13,117.73 = 5,256.73 : x
  2. Step 2: Convert to fraction form
    9,505.78/13,117.73 = 5,256.73/x
  3. Step 3: Cross multiply
    9,505.78x = 13,117.73 × 5,256.73
  4. Step 4: Simplify right side
    9,505.78x = 68,956,364.82
  5. Step 5: Solve for x
    x = 68,956,364.82/9,505.78
  6. Step 6: Final answer
    x = 7,254.15

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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.