Home / 13,892.16-20,840.40-4,656

Finding the Fourth Proportional to 13,892.16, 20,840.40 and 4,656

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Solution

The fourth proportional to 13,892.16, 20,840.40 and 4,656 is: 6,984.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,892.16 : 20,840.40 = 4,656 : x
  2. Step 2: Convert to fraction form
    13,892.16/20,840.40 = 4,656/x
  3. Step 3: Cross multiply
    13,892.16x = 20,840.40 × 4,656
  4. Step 4: Simplify right side
    13,892.16x = 97,032,902.40
  5. Step 5: Solve for x
    x = 97,032,902.40/13,892.16
  6. Step 6: Final answer
    x = 6,984.72

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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.