Home / 13,586.91-20,381.85-4,224.71

Finding the Fourth Proportional to 13,586.91, 20,381.85 and 4,224.71

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Solution

The fourth proportional to 13,586.91, 20,381.85 and 4,224.71 is: 6,337.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.91 : 20,381.85 = 4,224.71 : x
  2. Step 2: Convert to fraction form
    13,586.91/20,381.85 = 4,224.71/x
  3. Step 3: Cross multiply
    13,586.91x = 20,381.85 × 4,224.71
  4. Step 4: Simplify right side
    13,586.91x = 86,107,303.60
  5. Step 5: Solve for x
    x = 86,107,303.60/13,586.91
  6. Step 6: Final answer
    x = 6,337.52

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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.