Home / 13,664.72-20,501.40-5,345.84

Finding the Fourth Proportional to 13,664.72, 20,501.40 and 5,345.84

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Solution

The fourth proportional to 13,664.72, 20,501.40 and 5,345.84 is: 8,020.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.72 : 20,501.40 = 5,345.84 : x
  2. Step 2: Convert to fraction form
    13,664.72/20,501.40 = 5,345.84/x
  3. Step 3: Cross multiply
    13,664.72x = 20,501.40 × 5,345.84
  4. Step 4: Simplify right side
    13,664.72x = 109,597,204.18
  5. Step 5: Solve for x
    x = 109,597,204.18/13,664.72
  6. Step 6: Final answer
    x = 8,020.45

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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.