Home / 13,646.04-20,468.63-5,639.02

Finding the Fourth Proportional to 13,646.04, 20,468.63 and 5,639.02

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Solution

The fourth proportional to 13,646.04, 20,468.63 and 5,639.02 is: 8,458.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.04 : 20,468.63 = 5,639.02 : x
  2. Step 2: Convert to fraction form
    13,646.04/20,468.63 = 5,639.02/x
  3. Step 3: Cross multiply
    13,646.04x = 20,468.63 × 5,639.02
  4. Step 4: Simplify right side
    13,646.04x = 115,422,976.87
  5. Step 5: Solve for x
    x = 115,422,976.87/13,646.04
  6. Step 6: Final answer
    x = 8,458.35

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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.