Home / 12,905.56-19,353.44-5,505.40

Finding the Fourth Proportional to 12,905.56, 19,353.44 and 5,505.40

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Solution

The fourth proportional to 12,905.56, 19,353.44 and 5,505.40 is: 8,256.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.56 : 19,353.44 = 5,505.40 : x
  2. Step 2: Convert to fraction form
    12,905.56/19,353.44 = 5,505.40/x
  3. Step 3: Cross multiply
    12,905.56x = 19,353.44 × 5,505.40
  4. Step 4: Simplify right side
    12,905.56x = 106,548,428.58
  5. Step 5: Solve for x
    x = 106,548,428.58/12,905.56
  6. Step 6: Final answer
    x = 8,256.01

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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.