Home / 19,410.93-29,120.18-8,316.09

Finding the Fourth Proportional to 19,410.93, 29,120.18 and 8,316.09

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Solution

The fourth proportional to 19,410.93, 29,120.18 and 8,316.09 is: 12,475.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,410.93 : 29,120.18 = 8,316.09 : x
  2. Step 2: Convert to fraction form
    19,410.93/29,120.18 = 8,316.09/x
  3. Step 3: Cross multiply
    19,410.93x = 29,120.18 × 8,316.09
  4. Step 4: Simplify right side
    19,410.93x = 242,165,996.12
  5. Step 5: Solve for x
    x = 242,165,996.12/19,410.93
  6. Step 6: Final answer
    x = 12,475.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.