Home / 13,457.63-20,189.70-4,223.63

Finding the Fourth Proportional to 13,457.63, 20,189.70 and 4,223.63

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Solution

The fourth proportional to 13,457.63, 20,189.70 and 4,223.63 is: 6,336.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.63 : 20,189.70 = 4,223.63 : x
  2. Step 2: Convert to fraction form
    13,457.63/20,189.70 = 4,223.63/x
  3. Step 3: Cross multiply
    13,457.63x = 20,189.70 × 4,223.63
  4. Step 4: Simplify right side
    13,457.63x = 85,273,721.66
  5. Step 5: Solve for x
    x = 85,273,721.66/13,457.63
  6. Step 6: Final answer
    x = 6,336.46

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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.