Home / 8,330.08-12,494.80-3,398.40

Finding the Fourth Proportional to 8,330.08, 12,494.80 and 3,398.40

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Solution

The fourth proportional to 8,330.08, 12,494.80 and 3,398.40 is: 5,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.08 : 12,494.80 = 3,398.40 : x
  2. Step 2: Convert to fraction form
    8,330.08/12,494.80 = 3,398.40/x
  3. Step 3: Cross multiply
    8,330.08x = 12,494.80 × 3,398.40
  4. Step 4: Simplify right side
    8,330.08x = 42,462,328.32
  5. Step 5: Solve for x
    x = 42,462,328.32/8,330.08
  6. Step 6: Final answer
    x = 5,097.47

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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.