Home / 13,830.72-20,746.08-5,928.10

Finding the Fourth Proportional to 13,830.72, 20,746.08 and 5,928.10

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Solution

The fourth proportional to 13,830.72, 20,746.08 and 5,928.10 is: 8,892.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.72 : 20,746.08 = 5,928.10 : x
  2. Step 2: Convert to fraction form
    13,830.72/20,746.08 = 5,928.10/x
  3. Step 3: Cross multiply
    13,830.72x = 20,746.08 × 5,928.10
  4. Step 4: Simplify right side
    13,830.72x = 122,984,784.98
  5. Step 5: Solve for x
    x = 122,984,784.98/13,830.72
  6. Step 6: Final answer
    x = 8,892.15

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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.