Home / 13,687.02-20,529.51-3,827.07

Finding the Fourth Proportional to 13,687.02, 20,529.51 and 3,827.07

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Solution

The fourth proportional to 13,687.02, 20,529.51 and 3,827.07 is: 5,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.02 : 20,529.51 = 3,827.07 : x
  2. Step 2: Convert to fraction form
    13,687.02/20,529.51 = 3,827.07/x
  3. Step 3: Cross multiply
    13,687.02x = 20,529.51 × 3,827.07
  4. Step 4: Simplify right side
    13,687.02x = 78,567,857.48
  5. Step 5: Solve for x
    x = 78,567,857.48/13,687.02
  6. Step 6: Final answer
    x = 5,740.32

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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.