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Finding the Fourth Proportional to 10,379.66, 14,303.39 and 7,387.11

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Solution

The fourth proportional to 10,379.66, 14,303.39 and 7,387.11 is: 10,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379.66 : 14,303.39 = 7,387.11 : x
  2. Step 2: Convert to fraction form
    10,379.66/14,303.39 = 7,387.11/x
  3. Step 3: Cross multiply
    10,379.66x = 14,303.39 × 7,387.11
  4. Step 4: Simplify right side
    10,379.66x = 105,660,678.37
  5. Step 5: Solve for x
    x = 105,660,678.37/10,379.66
  6. Step 6: Final answer
    x = 10,179.59

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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.