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Finding the Fourth Proportional to 7,873.04, 11,808.48 and 2,678.24

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Solution

The fourth proportional to 7,873.04, 11,808.48 and 2,678.24 is: 4,016.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,873.04 : 11,808.48 = 2,678.24 : x
  2. Step 2: Convert to fraction form
    7,873.04/11,808.48 = 2,678.24/x
  3. Step 3: Cross multiply
    7,873.04x = 11,808.48 × 2,678.24
  4. Step 4: Simplify right side
    7,873.04x = 31,625,943.48
  5. Step 5: Solve for x
    x = 31,625,943.48/7,873.04
  6. Step 6: Final answer
    x = 4,016.99

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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.