Home / 13,457.36-20,172.46-8,463.30

Finding the Fourth Proportional to 13,457.36, 20,172.46 and 8,463.30

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Solution

The fourth proportional to 13,457.36, 20,172.46 and 8,463.30 is: 12,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457.36 : 20,172.46 = 8,463.30 : x
  2. Step 2: Convert to fraction form
    13,457.36/20,172.46 = 8,463.30/x
  3. Step 3: Cross multiply
    13,457.36x = 20,172.46 × 8,463.30
  4. Step 4: Simplify right side
    13,457.36x = 170,725,501.01
  5. Step 5: Solve for x
    x = 170,725,501.01/13,457.36
  6. Step 6: Final answer
    x = 12,686.41

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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.