Home / 12,419.04-17,138.32-6,830.08

Finding the Fourth Proportional to 12,419.04, 17,138.32 and 6,830.08

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Solution

The fourth proportional to 12,419.04, 17,138.32 and 6,830.08 is: 9,425.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.04 : 17,138.32 = 6,830.08 : x
  2. Step 2: Convert to fraction form
    12,419.04/17,138.32 = 6,830.08/x
  3. Step 3: Cross multiply
    12,419.04x = 17,138.32 × 6,830.08
  4. Step 4: Simplify right side
    12,419.04x = 117,056,096.67
  5. Step 5: Solve for x
    x = 117,056,096.67/12,419.04
  6. Step 6: Final answer
    x = 9,425.54

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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.