Home / 18,680.08-25,777.58-10,722.12

Finding the Fourth Proportional to 18,680.08, 25,777.58 and 10,722.12

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Solution

The fourth proportional to 18,680.08, 25,777.58 and 10,722.12 is: 14,795.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.08 : 25,777.58 = 10,722.12 : x
  2. Step 2: Convert to fraction form
    18,680.08/25,777.58 = 10,722.12/x
  3. Step 3: Cross multiply
    18,680.08x = 25,777.58 × 10,722.12
  4. Step 4: Simplify right side
    18,680.08x = 276,390,306.07
  5. Step 5: Solve for x
    x = 276,390,306.07/18,680.08
  6. Step 6: Final answer
    x = 14,795.99

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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.