Home / 13,450.13-18,559.49-7,482.05

Finding the Fourth Proportional to 13,450.13, 18,559.49 and 7,482.05

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Solution

The fourth proportional to 13,450.13, 18,559.49 and 7,482.05 is: 10,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.13 : 18,559.49 = 7,482.05 : x
  2. Step 2: Convert to fraction form
    13,450.13/18,559.49 = 7,482.05/x
  3. Step 3: Cross multiply
    13,450.13x = 18,559.49 × 7,482.05
  4. Step 4: Simplify right side
    13,450.13x = 138,862,994.74
  5. Step 5: Solve for x
    x = 138,862,994.74/13,450.13
  6. Step 6: Final answer
    x = 10,324.29

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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.