Home / 15,871.68-21,911.58-10,494.36

Finding the Fourth Proportional to 15,871.68, 21,911.58 and 10,494.36

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Solution

The fourth proportional to 15,871.68, 21,911.58 and 10,494.36 is: 14,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.68 : 21,911.58 = 10,494.36 : x
  2. Step 2: Convert to fraction form
    15,871.68/21,911.58 = 10,494.36/x
  3. Step 3: Cross multiply
    15,871.68x = 21,911.58 × 10,494.36
  4. Step 4: Simplify right side
    15,871.68x = 229,948,008.69
  5. Step 5: Solve for x
    x = 229,948,008.69/15,871.68
  6. Step 6: Final answer
    x = 14,487.94

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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.