Home / 10,695.39-14,760.21-6,447.81

Finding the Fourth Proportional to 10,695.39, 14,760.21 and 6,447.81

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Solution

The fourth proportional to 10,695.39, 14,760.21 and 6,447.81 is: 8,898.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,695.39 : 14,760.21 = 6,447.81 : x
  2. Step 2: Convert to fraction form
    10,695.39/14,760.21 = 6,447.81/x
  3. Step 3: Cross multiply
    10,695.39x = 14,760.21 × 6,447.81
  4. Step 4: Simplify right side
    10,695.39x = 95,171,029.64
  5. Step 5: Solve for x
    x = 95,171,029.64/10,695.39
  6. Step 6: Final answer
    x = 8,898.32

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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.