Home / 13,999.86-21,005.26-5,232.72

Finding the Fourth Proportional to 13,999.86, 21,005.26 and 5,232.72

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Solution

The fourth proportional to 13,999.86, 21,005.26 and 5,232.72 is: 7,851.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.86 : 21,005.26 = 5,232.72 : x
  2. Step 2: Convert to fraction form
    13,999.86/21,005.26 = 5,232.72/x
  3. Step 3: Cross multiply
    13,999.86x = 21,005.26 × 5,232.72
  4. Step 4: Simplify right side
    13,999.86x = 109,914,644.11
  5. Step 5: Solve for x
    x = 109,914,644.11/13,999.86
  6. Step 6: Final answer
    x = 7,851.12

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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.