Home / 14,243.49-19,657.40-7,871.58

Finding the Fourth Proportional to 14,243.49, 19,657.40 and 7,871.58

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Solution

The fourth proportional to 14,243.49, 19,657.40 and 7,871.58 is: 10,863.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,243.49 : 19,657.40 = 7,871.58 : x
  2. Step 2: Convert to fraction form
    14,243.49/19,657.40 = 7,871.58/x
  3. Step 3: Cross multiply
    14,243.49x = 19,657.40 × 7,871.58
  4. Step 4: Simplify right side
    14,243.49x = 154,734,757.33
  5. Step 5: Solve for x
    x = 154,734,757.33/14,243.49
  6. Step 6: Final answer
    x = 10,863.54

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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.