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Finding the Fourth Proportional to 14,080.77, 19,435.41 and 8,419.41

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Solution

The fourth proportional to 14,080.77, 19,435.41 and 8,419.41 is: 11,621.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.77 : 19,435.41 = 8,419.41 : x
  2. Step 2: Convert to fraction form
    14,080.77/19,435.41 = 8,419.41/x
  3. Step 3: Cross multiply
    14,080.77x = 19,435.41 × 8,419.41
  4. Step 4: Simplify right side
    14,080.77x = 163,634,685.31
  5. Step 5: Solve for x
    x = 163,634,685.31/14,080.77
  6. Step 6: Final answer
    x = 11,621.15

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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.