Home / 15,416.88-21,278.32-12,053.04

Finding the Fourth Proportional to 15,416.88, 21,278.32 and 12,053.04

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Solution

The fourth proportional to 15,416.88, 21,278.32 and 12,053.04 is: 16,635.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,416.88 : 21,278.32 = 12,053.04 : x
  2. Step 2: Convert to fraction form
    15,416.88/21,278.32 = 12,053.04/x
  3. Step 3: Cross multiply
    15,416.88x = 21,278.32 × 12,053.04
  4. Step 4: Simplify right side
    15,416.88x = 256,468,442.09
  5. Step 5: Solve for x
    x = 256,468,442.09/15,416.88
  6. Step 6: Final answer
    x = 16,635.56

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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.