Home / 12,911.04-19,361.36-5,009.40

Finding the Fourth Proportional to 12,911.04, 19,361.36 and 5,009.40

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Solution

The fourth proportional to 12,911.04, 19,361.36 and 5,009.40 is: 7,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.04 : 19,361.36 = 5,009.40 : x
  2. Step 2: Convert to fraction form
    12,911.04/19,361.36 = 5,009.40/x
  3. Step 3: Cross multiply
    12,911.04x = 19,361.36 × 5,009.40
  4. Step 4: Simplify right side
    12,911.04x = 96,988,796.78
  5. Step 5: Solve for x
    x = 96,988,796.78/12,911.04
  6. Step 6: Final answer
    x = 7,512.08

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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.