Home / 13,049.77-19,572.19-3,689.72

Finding the Fourth Proportional to 13,049.77, 19,572.19 and 3,689.72

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Solution

The fourth proportional to 13,049.77, 19,572.19 and 3,689.72 is: 5,533.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.77 : 19,572.19 = 3,689.72 : x
  2. Step 2: Convert to fraction form
    13,049.77/19,572.19 = 3,689.72/x
  3. Step 3: Cross multiply
    13,049.77x = 19,572.19 × 3,689.72
  4. Step 4: Simplify right side
    13,049.77x = 72,215,803.03
  5. Step 5: Solve for x
    x = 72,215,803.03/13,049.77
  6. Step 6: Final answer
    x = 5,533.88

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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.