Home / 12,624.48-17,419.80-7,318.20

Finding the Fourth Proportional to 12,624.48, 17,419.80 and 7,318.20

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Solution

The fourth proportional to 12,624.48, 17,419.80 and 7,318.20 is: 10,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.48 : 17,419.80 = 7,318.20 : x
  2. Step 2: Convert to fraction form
    12,624.48/17,419.80 = 7,318.20/x
  3. Step 3: Cross multiply
    12,624.48x = 17,419.80 × 7,318.20
  4. Step 4: Simplify right side
    12,624.48x = 127,481,580.36
  5. Step 5: Solve for x
    x = 127,481,580.36/12,624.48
  6. Step 6: Final answer
    x = 10,097.97

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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.