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Finding the Fourth Proportional to 14,447.80, 19,934.76 and 8,477.32

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Solution

The fourth proportional to 14,447.80, 19,934.76 and 8,477.32 is: 11,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,447.80 : 19,934.76 = 8,477.32 : x
  2. Step 2: Convert to fraction form
    14,447.80/19,934.76 = 8,477.32/x
  3. Step 3: Cross multiply
    14,447.80x = 19,934.76 × 8,477.32
  4. Step 4: Simplify right side
    14,447.80x = 168,993,339.64
  5. Step 5: Solve for x
    x = 168,993,339.64/14,447.80
  6. Step 6: Final answer
    x = 11,696.82

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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.