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Finding the Fourth Proportional to 9,677.44, 13,355.03 and 5,429.44

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Solution

The fourth proportional to 9,677.44, 13,355.03 and 5,429.44 is: 7,492.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,677.44 : 13,355.03 = 5,429.44 : x
  2. Step 2: Convert to fraction form
    9,677.44/13,355.03 = 5,429.44/x
  3. Step 3: Cross multiply
    9,677.44x = 13,355.03 × 5,429.44
  4. Step 4: Simplify right side
    9,677.44x = 72,510,334.08
  5. Step 5: Solve for x
    x = 72,510,334.08/9,677.44
  6. Step 6: Final answer
    x = 7,492.72

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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.