Home / 13,621.52-18,797.18-7,572.14

Finding the Fourth Proportional to 13,621.52, 18,797.18 and 7,572.14

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Solution

The fourth proportional to 13,621.52, 18,797.18 and 7,572.14 is: 10,449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.52 : 18,797.18 = 7,572.14 : x
  2. Step 2: Convert to fraction form
    13,621.52/18,797.18 = 7,572.14/x
  3. Step 3: Cross multiply
    13,621.52x = 18,797.18 × 7,572.14
  4. Step 4: Simplify right side
    13,621.52x = 142,334,878.57
  5. Step 5: Solve for x
    x = 142,334,878.57/13,621.52
  6. Step 6: Final answer
    x = 10,449.27

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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.