Home / 18,302.06-27,470.10-7,216.40

Finding the Fourth Proportional to 18,302.06, 27,470.10 and 7,216.40

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Solution

The fourth proportional to 18,302.06, 27,470.10 and 7,216.40 is: 10,831.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.06 : 27,470.10 = 7,216.40 : x
  2. Step 2: Convert to fraction form
    18,302.06/27,470.10 = 7,216.40/x
  3. Step 3: Cross multiply
    18,302.06x = 27,470.10 × 7,216.40
  4. Step 4: Simplify right side
    18,302.06x = 198,235,229.64
  5. Step 5: Solve for x
    x = 198,235,229.64/18,302.06
  6. Step 6: Final answer
    x = 10,831.31

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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.