Home / 13,423.01-20,136.69-4,539.20

Finding the Fourth Proportional to 13,423.01, 20,136.69 and 4,539.20

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Solution

The fourth proportional to 13,423.01, 20,136.69 and 4,539.20 is: 6,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,423.01 : 20,136.69 = 4,539.20 : x
  2. Step 2: Convert to fraction form
    13,423.01/20,136.69 = 4,539.20/x
  3. Step 3: Cross multiply
    13,423.01x = 20,136.69 × 4,539.20
  4. Step 4: Simplify right side
    13,423.01x = 91,404,362.56
  5. Step 5: Solve for x
    x = 91,404,362.56/13,423.01
  6. Step 6: Final answer
    x = 6,809.53

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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.