Home / 12,889.37-17,744.52-11,560.77

Finding the Fourth Proportional to 12,889.37, 17,744.52 and 11,560.77

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Solution

The fourth proportional to 12,889.37, 17,744.52 and 11,560.77 is: 15,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.37 : 17,744.52 = 11,560.77 : x
  2. Step 2: Convert to fraction form
    12,889.37/17,744.52 = 11,560.77/x
  3. Step 3: Cross multiply
    12,889.37x = 17,744.52 × 11,560.77
  4. Step 4: Simplify right side
    12,889.37x = 205,140,314.48
  5. Step 5: Solve for x
    x = 205,140,314.48/12,889.37
  6. Step 6: Final answer
    x = 15,915.47

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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.