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Finding the Fourth Proportional to 9,627, 13,285.38 and 5,435.28

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Solution

The fourth proportional to 9,627, 13,285.38 and 5,435.28 is: 7,500.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,627 : 13,285.38 = 5,435.28 : x
  2. Step 2: Convert to fraction form
    9,627/13,285.38 = 5,435.28/x
  3. Step 3: Cross multiply
    9,627x = 13,285.38 × 5,435.28
  4. Step 4: Simplify right side
    9,627x = 72,209,760.21
  5. Step 5: Solve for x
    x = 72,209,760.21/9,627
  6. Step 6: Final answer
    x = 7,500.75

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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.