Home / 13,981.81-19,294.87-7,694.19

Finding the Fourth Proportional to 13,981.81, 19,294.87 and 7,694.19

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Solution

The fourth proportional to 13,981.81, 19,294.87 and 7,694.19 is: 10,617.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,981.81 : 19,294.87 = 7,694.19 : x
  2. Step 2: Convert to fraction form
    13,981.81/19,294.87 = 7,694.19/x
  3. Step 3: Cross multiply
    13,981.81x = 19,294.87 × 7,694.19
  4. Step 4: Simplify right side
    13,981.81x = 148,458,395.81
  5. Step 5: Solve for x
    x = 148,458,395.81/13,981.81
  6. Step 6: Final answer
    x = 10,617.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.