Home / 13,409.61-18,505.31-7,441.35

Finding the Fourth Proportional to 13,409.61, 18,505.31 and 7,441.35

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Solution

The fourth proportional to 13,409.61, 18,505.31 and 7,441.35 is: 10,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.61 : 18,505.31 = 7,441.35 : x
  2. Step 2: Convert to fraction form
    13,409.61/18,505.31 = 7,441.35/x
  3. Step 3: Cross multiply
    13,409.61x = 18,505.31 × 7,441.35
  4. Step 4: Simplify right side
    13,409.61x = 137,704,451.36
  5. Step 5: Solve for x
    x = 137,704,451.36/13,409.61
  6. Step 6: Final answer
    x = 10,269.09

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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.