Home / 10,007.04-13,809.60-5,530.80

Finding the Fourth Proportional to 10,007.04, 13,809.60 and 5,530.80

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Solution

The fourth proportional to 10,007.04, 13,809.60 and 5,530.80 is: 7,632.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.04 : 13,809.60 = 5,530.80 : x
  2. Step 2: Convert to fraction form
    10,007.04/13,809.60 = 5,530.80/x
  3. Step 3: Cross multiply
    10,007.04x = 13,809.60 × 5,530.80
  4. Step 4: Simplify right side
    10,007.04x = 76,378,135.68
  5. Step 5: Solve for x
    x = 76,378,135.68/10,007.04
  6. Step 6: Final answer
    x = 7,632.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.