Home / 12,688.83-19,035.99-5,294.04

Finding the Fourth Proportional to 12,688.83, 19,035.99 and 5,294.04

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Solution

The fourth proportional to 12,688.83, 19,035.99 and 5,294.04 is: 7,942.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,688.83 : 19,035.99 = 5,294.04 : x
  2. Step 2: Convert to fraction form
    12,688.83/19,035.99 = 5,294.04/x
  3. Step 3: Cross multiply
    12,688.83x = 19,035.99 × 5,294.04
  4. Step 4: Simplify right side
    12,688.83x = 100,777,292.50
  5. Step 5: Solve for x
    x = 100,777,292.50/12,688.83
  6. Step 6: Final answer
    x = 7,942.21

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1.5x scale

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.