Home / 18,810.60-28,217.32-6,330.66

Finding the Fourth Proportional to 18,810.60, 28,217.32 and 6,330.66

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Solution

The fourth proportional to 18,810.60, 28,217.32 and 6,330.66 is: 9,496.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.60 : 28,217.32 = 6,330.66 : x
  2. Step 2: Convert to fraction form
    18,810.60/28,217.32 = 6,330.66/x
  3. Step 3: Cross multiply
    18,810.60x = 28,217.32 × 6,330.66
  4. Step 4: Simplify right side
    18,810.60x = 178,634,259.03
  5. Step 5: Solve for x
    x = 178,634,259.03/18,810.60
  6. Step 6: Final answer
    x = 9,496.47

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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.