Home / 13,445.69-18,555.50-7,396.19

Finding the Fourth Proportional to 13,445.69, 18,555.50 and 7,396.19

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Solution

The fourth proportional to 13,445.69, 18,555.50 and 7,396.19 is: 10,206.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.69 : 18,555.50 = 7,396.19 : x
  2. Step 2: Convert to fraction form
    13,445.69/18,555.50 = 7,396.19/x
  3. Step 3: Cross multiply
    13,445.69x = 18,555.50 × 7,396.19
  4. Step 4: Simplify right side
    13,445.69x = 137,239,998.84
  5. Step 5: Solve for x
    x = 137,239,998.84/13,445.69
  6. Step 6: Final answer
    x = 10,206.99

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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.