Home / 13,675.55-20,500.99-4,908.40

Finding the Fourth Proportional to 13,675.55, 20,500.99 and 4,908.40

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Solution

The fourth proportional to 13,675.55, 20,500.99 and 4,908.40 is: 7,358.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.55 : 20,500.99 = 4,908.40 : x
  2. Step 2: Convert to fraction form
    13,675.55/20,500.99 = 4,908.40/x
  3. Step 3: Cross multiply
    13,675.55x = 20,500.99 × 4,908.40
  4. Step 4: Simplify right side
    13,675.55x = 100,626,995.79
  5. Step 5: Solve for x
    x = 100,626,995.79/13,675.55
  6. Step 6: Final answer
    x = 7,358.17

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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.