Home / 13,343.32-18,413.51-7,374.86

Finding the Fourth Proportional to 13,343.32, 18,413.51 and 7,374.86

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Solution

The fourth proportional to 13,343.32, 18,413.51 and 7,374.86 is: 10,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.32 : 18,413.51 = 7,374.86 : x
  2. Step 2: Convert to fraction form
    13,343.32/18,413.51 = 7,374.86/x
  3. Step 3: Cross multiply
    13,343.32x = 18,413.51 × 7,374.86
  4. Step 4: Simplify right side
    13,343.32x = 135,797,058.36
  5. Step 5: Solve for x
    x = 135,797,058.36/13,343.32
  6. Step 6: Final answer
    x = 10,177.16

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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.