Home / 10,116.84-13,960.44-5,640.24

Finding the Fourth Proportional to 10,116.84, 13,960.44 and 5,640.24

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Solution

The fourth proportional to 10,116.84, 13,960.44 and 5,640.24 is: 7,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,116.84 : 13,960.44 = 5,640.24 : x
  2. Step 2: Convert to fraction form
    10,116.84/13,960.44 = 5,640.24/x
  3. Step 3: Cross multiply
    10,116.84x = 13,960.44 × 5,640.24
  4. Step 4: Simplify right side
    10,116.84x = 78,740,232.11
  5. Step 5: Solve for x
    x = 78,740,232.11/10,116.84
  6. Step 6: Final answer
    x = 7,783.09

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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.