Home / 18,708.18-28,062.20-4,857.18

Finding the Fourth Proportional to 18,708.18, 28,062.20 and 4,857.18

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Solution

The fourth proportional to 18,708.18, 28,062.20 and 4,857.18 is: 7,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,708.18 : 28,062.20 = 4,857.18 : x
  2. Step 2: Convert to fraction form
    18,708.18/28,062.20 = 4,857.18/x
  3. Step 3: Cross multiply
    18,708.18x = 28,062.20 × 4,857.18
  4. Step 4: Simplify right side
    18,708.18x = 136,303,168.74
  5. Step 5: Solve for x
    x = 136,303,168.74/18,708.18
  6. Step 6: Final answer
    x = 7,285.75

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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.