Home / 13,890.49-20,838.16-4,527.90

Finding the Fourth Proportional to 13,890.49, 20,838.16 and 4,527.90

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Solution

The fourth proportional to 13,890.49, 20,838.16 and 4,527.90 is: 6,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.49 : 20,838.16 = 4,527.90 : x
  2. Step 2: Convert to fraction form
    13,890.49/20,838.16 = 4,527.90/x
  3. Step 3: Cross multiply
    13,890.49x = 20,838.16 × 4,527.90
  4. Step 4: Simplify right side
    13,890.49x = 94,353,110.32
  5. Step 5: Solve for x
    x = 94,353,110.32/13,890.49
  6. Step 6: Final answer
    x = 6,792.64

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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.