Home / 7,356.90-11,015.70-3,886.86

Finding the Fourth Proportional to 7,356.90, 11,015.70 and 3,886.86

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Solution

The fourth proportional to 7,356.90, 11,015.70 and 3,886.86 is: 5,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.90 : 11,015.70 = 3,886.86 : x
  2. Step 2: Convert to fraction form
    7,356.90/11,015.70 = 3,886.86/x
  3. Step 3: Cross multiply
    7,356.90x = 11,015.70 × 3,886.86
  4. Step 4: Simplify right side
    7,356.90x = 42,816,483.70
  5. Step 5: Solve for x
    x = 42,816,483.70/7,356.90
  6. Step 6: Final answer
    x = 5,819.91

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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.