Home / 13,437.99-18,537.98-11,571.75

Finding the Fourth Proportional to 13,437.99, 18,537.98 and 11,571.75

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Solution

The fourth proportional to 13,437.99, 18,537.98 and 11,571.75 is: 15,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.99 : 18,537.98 = 11,571.75 : x
  2. Step 2: Convert to fraction form
    13,437.99/18,537.98 = 11,571.75/x
  3. Step 3: Cross multiply
    13,437.99x = 18,537.98 × 11,571.75
  4. Step 4: Simplify right side
    13,437.99x = 214,516,812.21
  5. Step 5: Solve for x
    x = 214,516,812.21/13,437.99
  6. Step 6: Final answer
    x = 15,963.46

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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.