Home / 15,918.17-21,944.27-11,187.77

Finding the Fourth Proportional to 15,918.17, 21,944.27 and 11,187.77

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Solution

The fourth proportional to 15,918.17, 21,944.27 and 11,187.77 is: 15,423.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.17 : 21,944.27 = 11,187.77 : x
  2. Step 2: Convert to fraction form
    15,918.17/21,944.27 = 11,187.77/x
  3. Step 3: Cross multiply
    15,918.17x = 21,944.27 × 11,187.77
  4. Step 4: Simplify right side
    15,918.17x = 245,507,389.64
  5. Step 5: Solve for x
    x = 245,507,389.64/15,918.17
  6. Step 6: Final answer
    x = 15,423.09

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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.