Home / 13,438.53-20,161.45-4,674.13

Finding the Fourth Proportional to 13,438.53, 20,161.45 and 4,674.13

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Solution

The fourth proportional to 13,438.53, 20,161.45 and 4,674.13 is: 7,012.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438.53 : 20,161.45 = 4,674.13 : x
  2. Step 2: Convert to fraction form
    13,438.53/20,161.45 = 4,674.13/x
  3. Step 3: Cross multiply
    13,438.53x = 20,161.45 × 4,674.13
  4. Step 4: Simplify right side
    13,438.53x = 94,237,238.29
  5. Step 5: Solve for x
    x = 94,237,238.29/13,438.53
  6. Step 6: Final answer
    x = 7,012.47

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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.