Home / 15,821.72-21,837.36-10,797.92

Finding the Fourth Proportional to 15,821.72, 21,837.36 and 10,797.92

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Solution

The fourth proportional to 15,821.72, 21,837.36 and 10,797.92 is: 14,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,821.72 : 21,837.36 = 10,797.92 : x
  2. Step 2: Convert to fraction form
    15,821.72/21,837.36 = 10,797.92/x
  3. Step 3: Cross multiply
    15,821.72x = 21,837.36 × 10,797.92
  4. Step 4: Simplify right side
    15,821.72x = 235,798,066.29
  5. Step 5: Solve for x
    x = 235,798,066.29/15,821.72
  6. Step 6: Final answer
    x = 14,903.44

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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.