Home / 8,919.72-13,360.14-4,293

Finding the Fourth Proportional to 8,919.72, 13,360.14 and 4,293

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Solution

The fourth proportional to 8,919.72, 13,360.14 and 4,293 is: 6,430.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.72 : 13,360.14 = 4,293 : x
  2. Step 2: Convert to fraction form
    8,919.72/13,360.14 = 4,293/x
  3. Step 3: Cross multiply
    8,919.72x = 13,360.14 × 4,293
  4. Step 4: Simplify right side
    8,919.72x = 57,355,081.02
  5. Step 5: Solve for x
    x = 57,355,081.02/8,919.72
  6. Step 6: Final answer
    x = 6,430.14

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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.