Home / 13,124.89-19,680.04-4,355.02

Finding the Fourth Proportional to 13,124.89, 19,680.04 and 4,355.02

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Solution

The fourth proportional to 13,124.89, 19,680.04 and 4,355.02 is: 6,530.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.89 : 19,680.04 = 4,355.02 : x
  2. Step 2: Convert to fraction form
    13,124.89/19,680.04 = 4,355.02/x
  3. Step 3: Cross multiply
    13,124.89x = 19,680.04 × 4,355.02
  4. Step 4: Simplify right side
    13,124.89x = 85,706,967.80
  5. Step 5: Solve for x
    x = 85,706,967.80/13,124.89
  6. Step 6: Final answer
    x = 6,530.11

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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.