Home / 15,114.33-20,858.28-8,400.24

Finding the Fourth Proportional to 15,114.33, 20,858.28 and 8,400.24

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Solution

The fourth proportional to 15,114.33, 20,858.28 and 8,400.24 is: 11,592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.33 : 20,858.28 = 8,400.24 : x
  2. Step 2: Convert to fraction form
    15,114.33/20,858.28 = 8,400.24/x
  3. Step 3: Cross multiply
    15,114.33x = 20,858.28 × 8,400.24
  4. Step 4: Simplify right side
    15,114.33x = 175,214,557.99
  5. Step 5: Solve for x
    x = 175,214,557.99/15,114.33
  6. Step 6: Final answer
    x = 11,592.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.