Home / 13,066.31-19,601.90-6,140.81

Finding the Fourth Proportional to 13,066.31, 19,601.90 and 6,140.81

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Solution

The fourth proportional to 13,066.31, 19,601.90 and 6,140.81 is: 9,212.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.31 : 19,601.90 = 6,140.81 : x
  2. Step 2: Convert to fraction form
    13,066.31/19,601.90 = 6,140.81/x
  3. Step 3: Cross multiply
    13,066.31x = 19,601.90 × 6,140.81
  4. Step 4: Simplify right side
    13,066.31x = 120,371,584.87
  5. Step 5: Solve for x
    x = 120,371,584.87/13,066.31
  6. Step 6: Final answer
    x = 9,212.36

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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.