Home / 18,869.22-28,303.54-4,829.12

Finding the Fourth Proportional to 18,869.22, 28,303.54 and 4,829.12

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Solution

The fourth proportional to 18,869.22, 28,303.54 and 4,829.12 is: 7,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.22 : 28,303.54 = 4,829.12 : x
  2. Step 2: Convert to fraction form
    18,869.22/28,303.54 = 4,829.12/x
  3. Step 3: Cross multiply
    18,869.22x = 28,303.54 × 4,829.12
  4. Step 4: Simplify right side
    18,869.22x = 136,681,191.08
  5. Step 5: Solve for x
    x = 136,681,191.08/18,869.22
  6. Step 6: Final answer
    x = 7,243.61

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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.