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Finding the Fourth Proportional to 10,765.56, 14,850 and 6,513.60

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Solution

The fourth proportional to 10,765.56, 14,850 and 6,513.60 is: 8,984.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.56 : 14,850 = 6,513.60 : x
  2. Step 2: Convert to fraction form
    10,765.56/14,850 = 6,513.60/x
  3. Step 3: Cross multiply
    10,765.56x = 14,850 × 6,513.60
  4. Step 4: Simplify right side
    10,765.56x = 96,726,960
  5. Step 5: Solve for x
    x = 96,726,960/10,765.56
  6. Step 6: Final answer
    x = 8,984.85

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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.