Home / 18,413.32-25,411.08-10,455.88

Finding the Fourth Proportional to 18,413.32, 25,411.08 and 10,455.88

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Solution

The fourth proportional to 18,413.32, 25,411.08 and 10,455.88 is: 14,429.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,413.32 : 25,411.08 = 10,455.88 : x
  2. Step 2: Convert to fraction form
    18,413.32/25,411.08 = 10,455.88/x
  3. Step 3: Cross multiply
    18,413.32x = 25,411.08 × 10,455.88
  4. Step 4: Simplify right side
    18,413.32x = 265,695,203.15
  5. Step 5: Solve for x
    x = 265,695,203.15/18,413.32
  6. Step 6: Final answer
    x = 14,429.51

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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.