Home / 14,837.75-20,478.39-8,464.36

Finding the Fourth Proportional to 14,837.75, 20,478.39 and 8,464.36

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Solution

The fourth proportional to 14,837.75, 20,478.39 and 8,464.36 is: 11,682.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,837.75 : 20,478.39 = 8,464.36 : x
  2. Step 2: Convert to fraction form
    14,837.75/20,478.39 = 8,464.36/x
  3. Step 3: Cross multiply
    14,837.75x = 20,478.39 × 8,464.36
  4. Step 4: Simplify right side
    14,837.75x = 173,336,465.18
  5. Step 5: Solve for x
    x = 173,336,465.18/14,837.75
  6. Step 6: Final answer
    x = 11,682.13

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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.