Home / 7,837.13-11,756.30-2,643

Finding the Fourth Proportional to 7,837.13, 11,756.30 and 2,643

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Solution

The fourth proportional to 7,837.13, 11,756.30 and 2,643 is: 3,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.13 : 11,756.30 = 2,643 : x
  2. Step 2: Convert to fraction form
    7,837.13/11,756.30 = 2,643/x
  3. Step 3: Cross multiply
    7,837.13x = 11,756.30 × 2,643
  4. Step 4: Simplify right side
    7,837.13x = 31,071,887.69
  5. Step 5: Solve for x
    x = 31,071,887.69/7,837.13
  6. Step 6: Final answer
    x = 3,964.70

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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.