Home / 15,360.87-21,197.76-8,646.48

Finding the Fourth Proportional to 15,360.87, 21,197.76 and 8,646.48

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Solution

The fourth proportional to 15,360.87, 21,197.76 and 8,646.48 is: 11,932.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.87 : 21,197.76 = 8,646.48 : x
  2. Step 2: Convert to fraction form
    15,360.87/21,197.76 = 8,646.48/x
  3. Step 3: Cross multiply
    15,360.87x = 21,197.76 × 8,646.48
  4. Step 4: Simplify right side
    15,360.87x = 183,286,007.88
  5. Step 5: Solve for x
    x = 183,286,007.88/15,360.87
  6. Step 6: Final answer
    x = 11,932.01

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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.