Home / 10,839.29-14,965.36-7,018.11

Finding the Fourth Proportional to 10,839.29, 14,965.36 and 7,018.11

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Solution

The fourth proportional to 10,839.29, 14,965.36 and 7,018.11 is: 9,689.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.29 : 14,965.36 = 7,018.11 : x
  2. Step 2: Convert to fraction form
    10,839.29/14,965.36 = 7,018.11/x
  3. Step 3: Cross multiply
    10,839.29x = 14,965.36 × 7,018.11
  4. Step 4: Simplify right side
    10,839.29x = 105,028,525.12
  5. Step 5: Solve for x
    x = 105,028,525.12/10,839.29
  6. Step 6: Final answer
    x = 9,689.62

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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.