Home / 13,081.52-18,052.46-7,113.20

Finding the Fourth Proportional to 13,081.52, 18,052.46 and 7,113.20

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Solution

The fourth proportional to 13,081.52, 18,052.46 and 7,113.20 is: 9,816.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,081.52 : 18,052.46 = 7,113.20 : x
  2. Step 2: Convert to fraction form
    13,081.52/18,052.46 = 7,113.20/x
  3. Step 3: Cross multiply
    13,081.52x = 18,052.46 × 7,113.20
  4. Step 4: Simplify right side
    13,081.52x = 128,410,722.91
  5. Step 5: Solve for x
    x = 128,410,722.91/13,081.52
  6. Step 6: Final answer
    x = 9,816.19

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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.