Home / 13,997.25-19,316.30-7,710.03

Finding the Fourth Proportional to 13,997.25, 19,316.30 and 7,710.03

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Solution

The fourth proportional to 13,997.25, 19,316.30 and 7,710.03 is: 10,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.25 : 19,316.30 = 7,710.03 : x
  2. Step 2: Convert to fraction form
    13,997.25/19,316.30 = 7,710.03/x
  3. Step 3: Cross multiply
    13,997.25x = 19,316.30 × 7,710.03
  4. Step 4: Simplify right side
    13,997.25x = 148,929,213.94
  5. Step 5: Solve for x
    x = 148,929,213.94/13,997.25
  6. Step 6: Final answer
    x = 10,639.89

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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.