Home / 13,869.42-20,804.13-6,078.30

Finding the Fourth Proportional to 13,869.42, 20,804.13 and 6,078.30

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Solution

The fourth proportional to 13,869.42, 20,804.13 and 6,078.30 is: 9,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.42 : 20,804.13 = 6,078.30 : x
  2. Step 2: Convert to fraction form
    13,869.42/20,804.13 = 6,078.30/x
  3. Step 3: Cross multiply
    13,869.42x = 20,804.13 × 6,078.30
  4. Step 4: Simplify right side
    13,869.42x = 126,453,743.38
  5. Step 5: Solve for x
    x = 126,453,743.38/13,869.42
  6. Step 6: Final answer
    x = 9,117.45

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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.