Home / 12,904.40-19,342.20-5,507.60

Finding the Fourth Proportional to 12,904.40, 19,342.20 and 5,507.60

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Solution

The fourth proportional to 12,904.40, 19,342.20 and 5,507.60 is: 8,255.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,904.40 : 19,342.20 = 5,507.60 : x
  2. Step 2: Convert to fraction form
    12,904.40/19,342.20 = 5,507.60/x
  3. Step 3: Cross multiply
    12,904.40x = 19,342.20 × 5,507.60
  4. Step 4: Simplify right side
    12,904.40x = 106,529,100.72
  5. Step 5: Solve for x
    x = 106,529,100.72/12,904.40
  6. Step 6: Final answer
    x = 8,255.25

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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.