Home / 18,521.18-27,774.30-6,831.80

Finding the Fourth Proportional to 18,521.18, 27,774.30 and 6,831.80

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Solution

The fourth proportional to 18,521.18, 27,774.30 and 6,831.80 is: 10,244.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.18 : 27,774.30 = 6,831.80 : x
  2. Step 2: Convert to fraction form
    18,521.18/27,774.30 = 6,831.80/x
  3. Step 3: Cross multiply
    18,521.18x = 27,774.30 × 6,831.80
  4. Step 4: Simplify right side
    18,521.18x = 189,748,462.74
  5. Step 5: Solve for x
    x = 189,748,462.74/18,521.18
  6. Step 6: Final answer
    x = 10,244.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.