Home / 13,960.92-19,260.56-7,989.40

Finding the Fourth Proportional to 13,960.92, 19,260.56 and 7,989.40

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Solution

The fourth proportional to 13,960.92, 19,260.56 and 7,989.40 is: 11,022.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,960.92 : 19,260.56 = 7,989.40 : x
  2. Step 2: Convert to fraction form
    13,960.92/19,260.56 = 7,989.40/x
  3. Step 3: Cross multiply
    13,960.92x = 19,260.56 × 7,989.40
  4. Step 4: Simplify right side
    13,960.92x = 153,880,318.06
  5. Step 5: Solve for x
    x = 153,880,318.06/13,960.92
  6. Step 6: Final answer
    x = 11,022.22

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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.