Home / 18,831.08-28,212.19-8,817.46

Finding the Fourth Proportional to 18,831.08, 28,212.19 and 8,817.46

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Solution

The fourth proportional to 18,831.08, 28,212.19 and 8,817.46 is: 13,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.08 : 28,212.19 = 8,817.46 : x
  2. Step 2: Convert to fraction form
    18,831.08/28,212.19 = 8,817.46/x
  3. Step 3: Cross multiply
    18,831.08x = 28,212.19 × 8,817.46
  4. Step 4: Simplify right side
    18,831.08x = 248,759,856.84
  5. Step 5: Solve for x
    x = 248,759,856.84/18,831.08
  6. Step 6: Final answer
    x = 13,210.07

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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.