Home / 10,619.60-15,918.60-6,234.80

Finding the Fourth Proportional to 10,619.60, 15,918.60 and 6,234.80

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Solution

The fourth proportional to 10,619.60, 15,918.60 and 6,234.80 is: 9,345.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.60 : 15,918.60 = 6,234.80 : x
  2. Step 2: Convert to fraction form
    10,619.60/15,918.60 = 6,234.80/x
  3. Step 3: Cross multiply
    10,619.60x = 15,918.60 × 6,234.80
  4. Step 4: Simplify right side
    10,619.60x = 99,249,287.28
  5. Step 5: Solve for x
    x = 99,249,287.28/10,619.60
  6. Step 6: Final answer
    x = 9,345.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.