Home / 10,640.40-15,955.23-6,199.53

Finding the Fourth Proportional to 10,640.40, 15,955.23 and 6,199.53

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Solution

The fourth proportional to 10,640.40, 15,955.23 and 6,199.53 is: 9,296.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,640.40 : 15,955.23 = 6,199.53 : x
  2. Step 2: Convert to fraction form
    10,640.40/15,955.23 = 6,199.53/x
  3. Step 3: Cross multiply
    10,640.40x = 15,955.23 × 6,199.53
  4. Step 4: Simplify right side
    10,640.40x = 98,914,927.04
  5. Step 5: Solve for x
    x = 98,914,927.04/10,640.40
  6. Step 6: Final answer
    x = 9,296.17

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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.