Home / 13,334.08-20,012.64-5,131.84

Finding the Fourth Proportional to 13,334.08, 20,012.64 and 5,131.84

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Solution

The fourth proportional to 13,334.08, 20,012.64 and 5,131.84 is: 7,702.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.08 : 20,012.64 = 5,131.84 : x
  2. Step 2: Convert to fraction form
    13,334.08/20,012.64 = 5,131.84/x
  3. Step 3: Cross multiply
    13,334.08x = 20,012.64 × 5,131.84
  4. Step 4: Simplify right side
    13,334.08x = 102,701,666.46
  5. Step 5: Solve for x
    x = 102,701,666.46/13,334.08
  6. Step 6: Final answer
    x = 7,702.19

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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.