Home / 13,411.44-18,507.15-7,443.09

Finding the Fourth Proportional to 13,411.44, 18,507.15 and 7,443.09

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Solution

The fourth proportional to 13,411.44, 18,507.15 and 7,443.09 is: 10,271.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.44 : 18,507.15 = 7,443.09 : x
  2. Step 2: Convert to fraction form
    13,411.44/18,507.15 = 7,443.09/x
  3. Step 3: Cross multiply
    13,411.44x = 18,507.15 × 7,443.09
  4. Step 4: Simplify right side
    13,411.44x = 137,750,383.09
  5. Step 5: Solve for x
    x = 137,750,383.09/13,411.44
  6. Step 6: Final answer
    x = 10,271.11

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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.