Home / 13,700.84-18,907.16-7,413.21

Finding the Fourth Proportional to 13,700.84, 18,907.16 and 7,413.21

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Solution

The fourth proportional to 13,700.84, 18,907.16 and 7,413.21 is: 10,230.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,700.84 : 18,907.16 = 7,413.21 : x
  2. Step 2: Convert to fraction form
    13,700.84/18,907.16 = 7,413.21/x
  3. Step 3: Cross multiply
    13,700.84x = 18,907.16 × 7,413.21
  4. Step 4: Simplify right side
    13,700.84x = 140,162,710.52
  5. Step 5: Solve for x
    x = 140,162,710.52/13,700.84
  6. Step 6: Final answer
    x = 10,230.23

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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.