Home / 18,628.08-25,695.48-11,459.20

Finding the Fourth Proportional to 18,628.08, 25,695.48 and 11,459.20

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Solution

The fourth proportional to 18,628.08, 25,695.48 and 11,459.20 is: 15,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,628.08 : 25,695.48 = 11,459.20 : x
  2. Step 2: Convert to fraction form
    18,628.08/25,695.48 = 11,459.20/x
  3. Step 3: Cross multiply
    18,628.08x = 25,695.48 × 11,459.20
  4. Step 4: Simplify right side
    18,628.08x = 294,449,644.42
  5. Step 5: Solve for x
    x = 294,449,644.42/18,628.08
  6. Step 6: Final answer
    x = 15,806.76

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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.