Home / 15,857.06-21,872.84-10,199.18

Finding the Fourth Proportional to 15,857.06, 21,872.84 and 10,199.18

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Solution

The fourth proportional to 15,857.06, 21,872.84 and 10,199.18 is: 14,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,857.06 : 21,872.84 = 10,199.18 : x
  2. Step 2: Convert to fraction form
    15,857.06/21,872.84 = 10,199.18/x
  3. Step 3: Cross multiply
    15,857.06x = 21,872.84 × 10,199.18
  4. Step 4: Simplify right side
    15,857.06x = 223,084,871.91
  5. Step 5: Solve for x
    x = 223,084,871.91/15,857.06
  6. Step 6: Final answer
    x = 14,068.49

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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.