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Finding the Fourth Proportional to 10,695.61, 14,765.76 and 6,447.43

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Solution

The fourth proportional to 10,695.61, 14,765.76 and 6,447.43 is: 8,900.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,695.61 : 14,765.76 = 6,447.43 : x
  2. Step 2: Convert to fraction form
    10,695.61/14,765.76 = 6,447.43/x
  3. Step 3: Cross multiply
    10,695.61x = 14,765.76 × 6,447.43
  4. Step 4: Simplify right side
    10,695.61x = 95,201,222.45
  5. Step 5: Solve for x
    x = 95,201,222.45/10,695.61
  6. Step 6: Final answer
    x = 8,900.96

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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.