Home / 15,518.08-21,414.74-8,444.49

Finding the Fourth Proportional to 15,518.08, 21,414.74 and 8,444.49

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Solution

The fourth proportional to 15,518.08, 21,414.74 and 8,444.49 is: 11,653.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,518.08 : 21,414.74 = 8,444.49 : x
  2. Step 2: Convert to fraction form
    15,518.08/21,414.74 = 8,444.49/x
  3. Step 3: Cross multiply
    15,518.08x = 21,414.74 × 8,444.49
  4. Step 4: Simplify right side
    15,518.08x = 180,836,557.78
  5. Step 5: Solve for x
    x = 180,836,557.78/15,518.08
  6. Step 6: Final answer
    x = 11,653.28

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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.