Home / 13,973.39-20,931.97-6,466.38

Finding the Fourth Proportional to 13,973.39, 20,931.97 and 6,466.38

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Solution

The fourth proportional to 13,973.39, 20,931.97 and 6,466.38 is: 9,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,973.39 : 20,931.97 = 6,466.38 : x
  2. Step 2: Convert to fraction form
    13,973.39/20,931.97 = 6,466.38/x
  3. Step 3: Cross multiply
    13,973.39x = 20,931.97 × 6,466.38
  4. Step 4: Simplify right side
    13,973.39x = 135,354,072.17
  5. Step 5: Solve for x
    x = 135,354,072.17/13,973.39
  6. Step 6: Final answer
    x = 9,686.56

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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.