Home / 13,709.22-18,918.85-8,044.06

Finding the Fourth Proportional to 13,709.22, 18,918.85 and 8,044.06

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Solution

The fourth proportional to 13,709.22, 18,918.85 and 8,044.06 is: 11,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,709.22 : 18,918.85 = 8,044.06 : x
  2. Step 2: Convert to fraction form
    13,709.22/18,918.85 = 8,044.06/x
  3. Step 3: Cross multiply
    13,709.22x = 18,918.85 × 8,044.06
  4. Step 4: Simplify right side
    13,709.22x = 152,184,364.53
  5. Step 5: Solve for x
    x = 152,184,364.53/13,709.22
  6. Step 6: Final answer
    x = 11,100.88

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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.