Home / 13,949.37-19,250.16-7,981.02

Finding the Fourth Proportional to 13,949.37, 19,250.16 and 7,981.02

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Solution

The fourth proportional to 13,949.37, 19,250.16 and 7,981.02 is: 11,013.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.37 : 19,250.16 = 7,981.02 : x
  2. Step 2: Convert to fraction form
    13,949.37/19,250.16 = 7,981.02/x
  3. Step 3: Cross multiply
    13,949.37x = 19,250.16 × 7,981.02
  4. Step 4: Simplify right side
    13,949.37x = 153,635,911.96
  5. Step 5: Solve for x
    x = 153,635,911.96/13,949.37
  6. Step 6: Final answer
    x = 11,013.82

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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.