Home / 18,911.10-26,097.10-10,413.06

Finding the Fourth Proportional to 18,911.10, 26,097.10 and 10,413.06

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Solution

The fourth proportional to 18,911.10, 26,097.10 and 10,413.06 is: 14,369.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.10 : 26,097.10 = 10,413.06 : x
  2. Step 2: Convert to fraction form
    18,911.10/26,097.10 = 10,413.06/x
  3. Step 3: Cross multiply
    18,911.10x = 26,097.10 × 10,413.06
  4. Step 4: Simplify right side
    18,911.10x = 271,750,668.13
  5. Step 5: Solve for x
    x = 271,750,668.13/18,911.10
  6. Step 6: Final answer
    x = 14,369.90

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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.