Home / 14,120.52-19,486.32-8,815.32

Finding the Fourth Proportional to 14,120.52, 19,486.32 and 8,815.32

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Solution

The fourth proportional to 14,120.52, 19,486.32 and 8,815.32 is: 12,165.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.52 : 19,486.32 = 8,815.32 : x
  2. Step 2: Convert to fraction form
    14,120.52/19,486.32 = 8,815.32/x
  3. Step 3: Cross multiply
    14,120.52x = 19,486.32 × 8,815.32
  4. Step 4: Simplify right side
    14,120.52x = 171,778,146.42
  5. Step 5: Solve for x
    x = 171,778,146.42/14,120.52
  6. Step 6: Final answer
    x = 12,165.14

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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.