Home / 13,039.42-19,551.84-5,639.26

Finding the Fourth Proportional to 13,039.42, 19,551.84 and 5,639.26

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Solution

The fourth proportional to 13,039.42, 19,551.84 and 5,639.26 is: 8,455.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.42 : 19,551.84 = 5,639.26 : x
  2. Step 2: Convert to fraction form
    13,039.42/19,551.84 = 5,639.26/x
  3. Step 3: Cross multiply
    13,039.42x = 19,551.84 × 5,639.26
  4. Step 4: Simplify right side
    13,039.42x = 110,257,909.24
  5. Step 5: Solve for x
    x = 110,257,909.24/13,039.42
  6. Step 6: Final answer
    x = 8,455.74

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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.