Home / 13,152.99-18,147.45-8,906.16

Finding the Fourth Proportional to 13,152.99, 18,147.45 and 8,906.16

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Solution

The fourth proportional to 13,152.99, 18,147.45 and 8,906.16 is: 12,288.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.99 : 18,147.45 = 8,906.16 : x
  2. Step 2: Convert to fraction form
    13,152.99/18,147.45 = 8,906.16/x
  3. Step 3: Cross multiply
    13,152.99x = 18,147.45 × 8,906.16
  4. Step 4: Simplify right side
    13,152.99x = 161,624,093.29
  5. Step 5: Solve for x
    x = 161,624,093.29/13,152.99
  6. Step 6: Final answer
    x = 12,288.01

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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.