Home / 11,319.47-16,980.14-3,528.28

Finding the Fourth Proportional to 11,319.47, 16,980.14 and 3,528.28

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Solution

The fourth proportional to 11,319.47, 16,980.14 and 3,528.28 is: 5,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.47 : 16,980.14 = 3,528.28 : x
  2. Step 2: Convert to fraction form
    11,319.47/16,980.14 = 3,528.28/x
  3. Step 3: Cross multiply
    11,319.47x = 16,980.14 × 3,528.28
  4. Step 4: Simplify right side
    11,319.47x = 59,910,708.48
  5. Step 5: Solve for x
    x = 59,910,708.48/11,319.47
  6. Step 6: Final answer
    x = 5,292.71

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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.