Home / 13,945.61-19,244.51-7,571.90

Finding the Fourth Proportional to 13,945.61, 19,244.51 and 7,571.90

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Solution

The fourth proportional to 13,945.61, 19,244.51 and 7,571.90 is: 10,448.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.61 : 19,244.51 = 7,571.90 : x
  2. Step 2: Convert to fraction form
    13,945.61/19,244.51 = 7,571.90/x
  3. Step 3: Cross multiply
    13,945.61x = 19,244.51 × 7,571.90
  4. Step 4: Simplify right side
    13,945.61x = 145,717,505.27
  5. Step 5: Solve for x
    x = 145,717,505.27/13,945.61
  6. Step 6: Final answer
    x = 10,448.99

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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.