Home / 13,529.04-18,664.20-8,153.68

Finding the Fourth Proportional to 13,529.04, 18,664.20 and 8,153.68

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Solution

The fourth proportional to 13,529.04, 18,664.20 and 8,153.68 is: 11,248.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.04 : 18,664.20 = 8,153.68 : x
  2. Step 2: Convert to fraction form
    13,529.04/18,664.20 = 8,153.68/x
  3. Step 3: Cross multiply
    13,529.04x = 18,664.20 × 8,153.68
  4. Step 4: Simplify right side
    13,529.04x = 152,181,914.26
  5. Step 5: Solve for x
    x = 152,181,914.26/13,529.04
  6. Step 6: Final answer
    x = 11,248.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.