Home / 13,848.05-20,778.99-6,453.08

Finding the Fourth Proportional to 13,848.05, 20,778.99 and 6,453.08

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Solution

The fourth proportional to 13,848.05, 20,778.99 and 6,453.08 is: 9,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,848.05 : 20,778.99 = 6,453.08 : x
  2. Step 2: Convert to fraction form
    13,848.05/20,778.99 = 6,453.08/x
  3. Step 3: Cross multiply
    13,848.05x = 20,778.99 × 6,453.08
  4. Step 4: Simplify right side
    13,848.05x = 134,088,536.74
  5. Step 5: Solve for x
    x = 134,088,536.74/13,848.05
  6. Step 6: Final answer
    x = 9,682.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.