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Finding the Fourth Proportional to 9,953.13, 13,734.78 and 5,476.77

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Solution

The fourth proportional to 9,953.13, 13,734.78 and 5,476.77 is: 7,557.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,953.13 : 13,734.78 = 5,476.77 : x
  2. Step 2: Convert to fraction form
    9,953.13/13,734.78 = 5,476.77/x
  3. Step 3: Cross multiply
    9,953.13x = 13,734.78 × 5,476.77
  4. Step 4: Simplify right side
    9,953.13x = 75,222,231.06
  5. Step 5: Solve for x
    x = 75,222,231.06/9,953.13
  6. Step 6: Final answer
    x = 7,557.65

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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.