Home / 15,845.36-21,857.01-10,178.18

Finding the Fourth Proportional to 15,845.36, 21,857.01 and 10,178.18

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Solution

The fourth proportional to 15,845.36, 21,857.01 and 10,178.18 is: 14,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.36 : 21,857.01 = 10,178.18 : x
  2. Step 2: Convert to fraction form
    15,845.36/21,857.01 = 10,178.18/x
  3. Step 3: Cross multiply
    15,845.36x = 21,857.01 × 10,178.18
  4. Step 4: Simplify right side
    15,845.36x = 222,464,582.04
  5. Step 5: Solve for x
    x = 222,464,582.04/15,845.36
  6. Step 6: Final answer
    x = 14,039.73

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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.