Home / 13,271.84-19,910.04-5,476.40

Finding the Fourth Proportional to 13,271.84, 19,910.04 and 5,476.40

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Solution

The fourth proportional to 13,271.84, 19,910.04 and 5,476.40 is: 8,215.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.84 : 19,910.04 = 5,476.40 : x
  2. Step 2: Convert to fraction form
    13,271.84/19,910.04 = 5,476.40/x
  3. Step 3: Cross multiply
    13,271.84x = 19,910.04 × 5,476.40
  4. Step 4: Simplify right side
    13,271.84x = 109,035,343.06
  5. Step 5: Solve for x
    x = 109,035,343.06/13,271.84
  6. Step 6: Final answer
    x = 8,215.54

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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.