Home / 15,161.48-20,922.61-8,788.94

Finding the Fourth Proportional to 15,161.48, 20,922.61 and 8,788.94

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Solution

The fourth proportional to 15,161.48, 20,922.61 and 8,788.94 is: 12,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,161.48 : 20,922.61 = 8,788.94 : x
  2. Step 2: Convert to fraction form
    15,161.48/20,922.61 = 8,788.94/x
  3. Step 3: Cross multiply
    15,161.48x = 20,922.61 × 8,788.94
  4. Step 4: Simplify right side
    15,161.48x = 183,887,437.35
  5. Step 5: Solve for x
    x = 183,887,437.35/15,161.48
  6. Step 6: Final answer
    x = 12,128.60

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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.