Home / 15,668.64-21,621.60-8,593.92

Finding the Fourth Proportional to 15,668.64, 21,621.60 and 8,593.92

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Solution

The fourth proportional to 15,668.64, 21,621.60 and 8,593.92 is: 11,858.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,668.64 : 21,621.60 = 8,593.92 : x
  2. Step 2: Convert to fraction form
    15,668.64/21,621.60 = 8,593.92/x
  3. Step 3: Cross multiply
    15,668.64x = 21,621.60 × 8,593.92
  4. Step 4: Simplify right side
    15,668.64x = 185,814,300.67
  5. Step 5: Solve for x
    x = 185,814,300.67/15,668.64
  6. Step 6: Final answer
    x = 11,858.99

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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.