Home / 18,813.47-28,209.06-6,330.15

Finding the Fourth Proportional to 18,813.47, 28,209.06 and 6,330.15

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Solution

The fourth proportional to 18,813.47, 28,209.06 and 6,330.15 is: 9,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.47 : 28,209.06 = 6,330.15 : x
  2. Step 2: Convert to fraction form
    18,813.47/28,209.06 = 6,330.15/x
  3. Step 3: Cross multiply
    18,813.47x = 28,209.06 × 6,330.15
  4. Step 4: Simplify right side
    18,813.47x = 178,567,581.16
  5. Step 5: Solve for x
    x = 178,567,581.16/18,813.47
  6. Step 6: Final answer
    x = 9,491.48

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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.