Home / 10,005.14-15,007.90-3,079.64

Finding the Fourth Proportional to 10,005.14, 15,007.90 and 3,079.64

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Solution

The fourth proportional to 10,005.14, 15,007.90 and 3,079.64 is: 4,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.14 : 15,007.90 = 3,079.64 : x
  2. Step 2: Convert to fraction form
    10,005.14/15,007.90 = 3,079.64/x
  3. Step 3: Cross multiply
    10,005.14x = 15,007.90 × 3,079.64
  4. Step 4: Simplify right side
    10,005.14x = 46,218,929.16
  5. Step 5: Solve for x
    x = 46,218,929.16/10,005.14
  6. Step 6: Final answer
    x = 4,619.52

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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.