Home / 10,643.17-15,963.66-4,720.17

Finding the Fourth Proportional to 10,643.17, 15,963.66 and 4,720.17

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Solution

The fourth proportional to 10,643.17, 15,963.66 and 4,720.17 is: 7,079.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.17 : 15,963.66 = 4,720.17 : x
  2. Step 2: Convert to fraction form
    10,643.17/15,963.66 = 4,720.17/x
  3. Step 3: Cross multiply
    10,643.17x = 15,963.66 × 4,720.17
  4. Step 4: Simplify right side
    10,643.17x = 75,351,189.02
  5. Step 5: Solve for x
    x = 75,351,189.02/10,643.17
  6. Step 6: Final answer
    x = 7,079.77

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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.