Home / 7,078.87-10,590.36-6,247.81

Finding the Fourth Proportional to 7,078.87, 10,590.36 and 6,247.81

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Solution

The fourth proportional to 7,078.87, 10,590.36 and 6,247.81 is: 9,347.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.87 : 10,590.36 = 6,247.81 : x
  2. Step 2: Convert to fraction form
    7,078.87/10,590.36 = 6,247.81/x
  3. Step 3: Cross multiply
    7,078.87x = 10,590.36 × 6,247.81
  4. Step 4: Simplify right side
    7,078.87x = 66,166,557.11
  5. Step 5: Solve for x
    x = 66,166,557.11/7,078.87
  6. Step 6: Final answer
    x = 9,347.05

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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.