Home / 15,886.14-21,887.49-11,629.98

Finding the Fourth Proportional to 15,886.14, 21,887.49 and 11,629.98

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Solution

The fourth proportional to 15,886.14, 21,887.49 and 11,629.98 is: 16,023.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,886.14 : 21,887.49 = 11,629.98 : x
  2. Step 2: Convert to fraction form
    15,886.14/21,887.49 = 11,629.98/x
  3. Step 3: Cross multiply
    15,886.14x = 21,887.49 × 11,629.98
  4. Step 4: Simplify right side
    15,886.14x = 254,551,070.95
  5. Step 5: Solve for x
    x = 254,551,070.95/15,886.14
  6. Step 6: Final answer
    x = 16,023.47

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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.