Home / 13,299.12-19,941.12-5,503.68

Finding the Fourth Proportional to 13,299.12, 19,941.12 and 5,503.68

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Solution

The fourth proportional to 13,299.12, 19,941.12 and 5,503.68 is: 8,252.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.12 : 19,941.12 = 5,503.68 : x
  2. Step 2: Convert to fraction form
    13,299.12/19,941.12 = 5,503.68/x
  3. Step 3: Cross multiply
    13,299.12x = 19,941.12 × 5,503.68
  4. Step 4: Simplify right side
    13,299.12x = 109,749,543.32
  5. Step 5: Solve for x
    x = 109,749,543.32/13,299.12
  6. Step 6: Final answer
    x = 8,252.39

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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.