Home / 13,943.66-19,237.54-7,971.10

Finding the Fourth Proportional to 13,943.66, 19,237.54 and 7,971.10

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Solution

The fourth proportional to 13,943.66, 19,237.54 and 7,971.10 is: 10,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.66 : 19,237.54 = 7,971.10 : x
  2. Step 2: Convert to fraction form
    13,943.66/19,237.54 = 7,971.10/x
  3. Step 3: Cross multiply
    13,943.66x = 19,237.54 × 7,971.10
  4. Step 4: Simplify right side
    13,943.66x = 153,344,355.09
  5. Step 5: Solve for x
    x = 153,344,355.09/13,943.66
  6. Step 6: Final answer
    x = 10,997.43

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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.