Home / 7,007.38-10,509.99-2,077.45

Finding the Fourth Proportional to 7,007.38, 10,509.99 and 2,077.45

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Solution

The fourth proportional to 7,007.38, 10,509.99 and 2,077.45 is: 3,115.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.38 : 10,509.99 = 2,077.45 : x
  2. Step 2: Convert to fraction form
    7,007.38/10,509.99 = 2,077.45/x
  3. Step 3: Cross multiply
    7,007.38x = 10,509.99 × 2,077.45
  4. Step 4: Simplify right side
    7,007.38x = 21,833,978.73
  5. Step 5: Solve for x
    x = 21,833,978.73/7,007.38
  6. Step 6: Final answer
    x = 3,115.85

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1.5x scale

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.