Home / 15,836.90-21,853.43-10,722.01

Finding the Fourth Proportional to 15,836.90, 21,853.43 and 10,722.01

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Solution

The fourth proportional to 15,836.90, 21,853.43 and 10,722.01 is: 14,795.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,836.90 : 21,853.43 = 10,722.01 : x
  2. Step 2: Convert to fraction form
    15,836.90/21,853.43 = 10,722.01/x
  3. Step 3: Cross multiply
    15,836.90x = 21,853.43 × 10,722.01
  4. Step 4: Simplify right side
    15,836.90x = 234,312,694.99
  5. Step 5: Solve for x
    x = 234,312,694.99/15,836.90
  6. Step 6: Final answer
    x = 14,795.37

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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.