Home / 18,255.04-25,191.96-9,871.60

Finding the Fourth Proportional to 18,255.04, 25,191.96 and 9,871.60

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Solution

The fourth proportional to 18,255.04, 25,191.96 and 9,871.60 is: 13,622.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.04 : 25,191.96 = 9,871.60 : x
  2. Step 2: Convert to fraction form
    18,255.04/25,191.96 = 9,871.60/x
  3. Step 3: Cross multiply
    18,255.04x = 25,191.96 × 9,871.60
  4. Step 4: Simplify right side
    18,255.04x = 248,684,952.34
  5. Step 5: Solve for x
    x = 248,684,952.34/18,255.04
  6. Step 6: Final answer
    x = 13,622.81

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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.