Home / 13,404.11-18,497.55-7,435.79

Finding the Fourth Proportional to 13,404.11, 18,497.55 and 7,435.79

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Solution

The fourth proportional to 13,404.11, 18,497.55 and 7,435.79 is: 10,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,404.11 : 18,497.55 = 7,435.79 : x
  2. Step 2: Convert to fraction form
    13,404.11/18,497.55 = 7,435.79/x
  3. Step 3: Cross multiply
    13,404.11x = 18,497.55 × 7,435.79
  4. Step 4: Simplify right side
    13,404.11x = 137,543,897.31
  5. Step 5: Solve for x
    x = 137,543,897.31/13,404.11
  6. Step 6: Final answer
    x = 10,261.32

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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.