Home / 13,678.56-20,521.44-6,276.96

Finding the Fourth Proportional to 13,678.56, 20,521.44 and 6,276.96

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Solution

The fourth proportional to 13,678.56, 20,521.44 and 6,276.96 is: 9,417.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,678.56 : 20,521.44 = 6,276.96 : x
  2. Step 2: Convert to fraction form
    13,678.56/20,521.44 = 6,276.96/x
  3. Step 3: Cross multiply
    13,678.56x = 20,521.44 × 6,276.96
  4. Step 4: Simplify right side
    13,678.56x = 128,812,258.02
  5. Step 5: Solve for x
    x = 128,812,258.02/13,678.56
  6. Step 6: Final answer
    x = 9,417.09

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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.