Home / 13,381.01-18,465.79-7,413.07

Finding the Fourth Proportional to 13,381.01, 18,465.79 and 7,413.07

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Solution

The fourth proportional to 13,381.01, 18,465.79 and 7,413.07 is: 10,230.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.01 : 18,465.79 = 7,413.07 : x
  2. Step 2: Convert to fraction form
    13,381.01/18,465.79 = 7,413.07/x
  3. Step 3: Cross multiply
    13,381.01x = 18,465.79 × 7,413.07
  4. Step 4: Simplify right side
    13,381.01x = 136,888,101.55
  5. Step 5: Solve for x
    x = 136,888,101.55/13,381.01
  6. Step 6: Final answer
    x = 10,230.03

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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.