Home / 12,618.13-17,413.55-7,029.13

Finding the Fourth Proportional to 12,618.13, 17,413.55 and 7,029.13

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Solution

The fourth proportional to 12,618.13, 17,413.55 and 7,029.13 is: 9,700.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.13 : 17,413.55 = 7,029.13 : x
  2. Step 2: Convert to fraction form
    12,618.13/17,413.55 = 7,029.13/x
  3. Step 3: Cross multiply
    12,618.13x = 17,413.55 × 7,029.13
  4. Step 4: Simplify right side
    12,618.13x = 122,402,106.71
  5. Step 5: Solve for x
    x = 122,402,106.71/12,618.13
  6. Step 6: Final answer
    x = 9,700.49

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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.