Home / 13,643.66-20,465.88-5,323.34

Finding the Fourth Proportional to 13,643.66, 20,465.88 and 5,323.34

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Solution

The fourth proportional to 13,643.66, 20,465.88 and 5,323.34 is: 7,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,643.66 : 20,465.88 = 5,323.34 : x
  2. Step 2: Convert to fraction form
    13,643.66/20,465.88 = 5,323.34/x
  3. Step 3: Cross multiply
    13,643.66x = 20,465.88 × 5,323.34
  4. Step 4: Simplify right side
    13,643.66x = 108,946,837.64
  5. Step 5: Solve for x
    x = 108,946,837.64/13,643.66
  6. Step 6: Final answer
    x = 7,985.16

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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.