Home / 18,293.04-25,218.54-12,985.92

Finding the Fourth Proportional to 18,293.04, 25,218.54 and 12,985.92

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Solution

The fourth proportional to 18,293.04, 25,218.54 and 12,985.92 is: 17,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.04 : 25,218.54 = 12,985.92 : x
  2. Step 2: Convert to fraction form
    18,293.04/25,218.54 = 12,985.92/x
  3. Step 3: Cross multiply
    18,293.04x = 25,218.54 × 12,985.92
  4. Step 4: Simplify right side
    18,293.04x = 327,485,942.96
  5. Step 5: Solve for x
    x = 327,485,942.96/18,293.04
  6. Step 6: Final answer
    x = 17,902.22

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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.