Home / 13,215.51-19,817.51-5,001.75

Finding the Fourth Proportional to 13,215.51, 19,817.51 and 5,001.75

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Solution

The fourth proportional to 13,215.51, 19,817.51 and 5,001.75 is: 7,500.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.51 : 19,817.51 = 5,001.75 : x
  2. Step 2: Convert to fraction form
    13,215.51/19,817.51 = 5,001.75/x
  3. Step 3: Cross multiply
    13,215.51x = 19,817.51 × 5,001.75
  4. Step 4: Simplify right side
    13,215.51x = 99,122,205.63
  5. Step 5: Solve for x
    x = 99,122,205.63/13,215.51
  6. Step 6: Final answer
    x = 7,500.44

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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.