Home / 12,887.09-17,792.93-11,542.08

Finding the Fourth Proportional to 12,887.09, 17,792.93 and 11,542.08

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Solution

The fourth proportional to 12,887.09, 17,792.93 and 11,542.08 is: 15,935.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.09 : 17,792.93 = 11,542.08 : x
  2. Step 2: Convert to fraction form
    12,887.09/17,792.93 = 11,542.08/x
  3. Step 3: Cross multiply
    12,887.09x = 17,792.93 × 11,542.08
  4. Step 4: Simplify right side
    12,887.09x = 205,367,421.49
  5. Step 5: Solve for x
    x = 205,367,421.49/12,887.09
  6. Step 6: Final answer
    x = 15,935.90

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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.