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Finding the Fourth Proportional to 10,662.66, 14,715.18 and 6,187.86

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Solution

The fourth proportional to 10,662.66, 14,715.18 and 6,187.86 is: 8,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,662.66 : 14,715.18 = 6,187.86 : x
  2. Step 2: Convert to fraction form
    10,662.66/14,715.18 = 6,187.86/x
  3. Step 3: Cross multiply
    10,662.66x = 14,715.18 × 6,187.86
  4. Step 4: Simplify right side
    10,662.66x = 91,055,473.71
  5. Step 5: Solve for x
    x = 91,055,473.71/10,662.66
  6. Step 6: Final answer
    x = 8,539.66

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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.