Home / 18,254.55-25,191.28-9,871.05

Finding the Fourth Proportional to 18,254.55, 25,191.28 and 9,871.05

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Solution

The fourth proportional to 18,254.55, 25,191.28 and 9,871.05 is: 13,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.55 : 25,191.28 = 9,871.05 : x
  2. Step 2: Convert to fraction form
    18,254.55/25,191.28 = 9,871.05/x
  3. Step 3: Cross multiply
    18,254.55x = 25,191.28 × 9,871.05
  4. Step 4: Simplify right side
    18,254.55x = 248,664,384.44
  5. Step 5: Solve for x
    x = 248,664,384.44/18,254.55
  6. Step 6: Final answer
    x = 13,622.05

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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.