Home / 12,637.37-18,940.68-8,940.67

Finding the Fourth Proportional to 12,637.37, 18,940.68 and 8,940.67

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Solution

The fourth proportional to 12,637.37, 18,940.68 and 8,940.67 is: 13,400.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.37 : 18,940.68 = 8,940.67 : x
  2. Step 2: Convert to fraction form
    12,637.37/18,940.68 = 8,940.67/x
  3. Step 3: Cross multiply
    12,637.37x = 18,940.68 × 8,940.67
  4. Step 4: Simplify right side
    12,637.37x = 169,342,322.10
  5. Step 5: Solve for x
    x = 169,342,322.10/12,637.37
  6. Step 6: Final answer
    x = 13,400.12

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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.