Home / 13,956.68-19,261.88-7,990.26

Finding the Fourth Proportional to 13,956.68, 19,261.88 and 7,990.26

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Solution

The fourth proportional to 13,956.68, 19,261.88 and 7,990.26 is: 11,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.68 : 19,261.88 = 7,990.26 : x
  2. Step 2: Convert to fraction form
    13,956.68/19,261.88 = 7,990.26/x
  3. Step 3: Cross multiply
    13,956.68x = 19,261.88 × 7,990.26
  4. Step 4: Simplify right side
    13,956.68x = 153,907,389.34
  5. Step 5: Solve for x
    x = 153,907,389.34/13,956.68
  6. Step 6: Final answer
    x = 11,027.51

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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.