Home / 12,720.03-17,553.63-7,413.82

Finding the Fourth Proportional to 12,720.03, 17,553.63 and 7,413.82

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Solution

The fourth proportional to 12,720.03, 17,553.63 and 7,413.82 is: 10,231.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.03 : 17,553.63 = 7,413.82 : x
  2. Step 2: Convert to fraction form
    12,720.03/17,553.63 = 7,413.82/x
  3. Step 3: Cross multiply
    12,720.03x = 17,553.63 × 7,413.82
  4. Step 4: Simplify right side
    12,720.03x = 130,139,437.08
  5. Step 5: Solve for x
    x = 130,139,437.08/12,720.03
  6. Step 6: Final answer
    x = 10,231.07

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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.