Home / 13,586.36-20,373.36-4,223.61

Finding the Fourth Proportional to 13,586.36, 20,373.36 and 4,223.61

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Solution

The fourth proportional to 13,586.36, 20,373.36 and 4,223.61 is: 6,333.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.36 : 20,373.36 = 4,223.61 : x
  2. Step 2: Convert to fraction form
    13,586.36/20,373.36 = 4,223.61/x
  3. Step 3: Cross multiply
    13,586.36x = 20,373.36 × 4,223.61
  4. Step 4: Simplify right side
    13,586.36x = 86,049,127.03
  5. Step 5: Solve for x
    x = 86,049,127.03/13,586.36
  6. Step 6: Final answer
    x = 6,333.50

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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.