Home / 12,690.07-17,511.66-7,024.66

Finding the Fourth Proportional to 12,690.07, 17,511.66 and 7,024.66

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Solution

The fourth proportional to 12,690.07, 17,511.66 and 7,024.66 is: 9,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,690.07 : 17,511.66 = 7,024.66 : x
  2. Step 2: Convert to fraction form
    12,690.07/17,511.66 = 7,024.66/x
  3. Step 3: Cross multiply
    12,690.07x = 17,511.66 × 7,024.66
  4. Step 4: Simplify right side
    12,690.07x = 123,013,413.76
  5. Step 5: Solve for x
    x = 123,013,413.76/12,690.07
  6. Step 6: Final answer
    x = 9,693.68

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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.