Home / 13,975.84-20,956.47-5,203.54

Finding the Fourth Proportional to 13,975.84, 20,956.47 and 5,203.54

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Solution

The fourth proportional to 13,975.84, 20,956.47 and 5,203.54 is: 7,802.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.84 : 20,956.47 = 5,203.54 : x
  2. Step 2: Convert to fraction form
    13,975.84/20,956.47 = 5,203.54/x
  3. Step 3: Cross multiply
    13,975.84x = 20,956.47 × 5,203.54
  4. Step 4: Simplify right side
    13,975.84x = 109,047,865.86
  5. Step 5: Solve for x
    x = 109,047,865.86/13,975.84
  6. Step 6: Final answer
    x = 7,802.60

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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.