Home / 18,816.78-28,215.18-6,332.64

Finding the Fourth Proportional to 18,816.78, 28,215.18 and 6,332.64

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Solution

The fourth proportional to 18,816.78, 28,215.18 and 6,332.64 is: 9,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,816.78 : 28,215.18 = 6,332.64 : x
  2. Step 2: Convert to fraction form
    18,816.78/28,215.18 = 6,332.64/x
  3. Step 3: Cross multiply
    18,816.78x = 28,215.18 × 6,332.64
  4. Step 4: Simplify right side
    18,816.78x = 178,676,577.48
  5. Step 5: Solve for x
    x = 178,676,577.48/18,816.78
  6. Step 6: Final answer
    x = 9,495.60

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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.