Home / 18,271.44-25,213.32-10,818

Finding the Fourth Proportional to 18,271.44, 25,213.32 and 10,818

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Solution

The fourth proportional to 18,271.44, 25,213.32 and 10,818 is: 14,928.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,271.44 : 25,213.32 = 10,818 : x
  2. Step 2: Convert to fraction form
    18,271.44/25,213.32 = 10,818/x
  3. Step 3: Cross multiply
    18,271.44x = 25,213.32 × 10,818
  4. Step 4: Simplify right side
    18,271.44x = 272,757,695.76
  5. Step 5: Solve for x
    x = 272,757,695.76/18,271.44
  6. Step 6: Final answer
    x = 14,928.09

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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.