Home / 18,967.02-28,413.54-11,553.09

Finding the Fourth Proportional to 18,967.02, 28,413.54 and 11,553.09

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Solution

The fourth proportional to 18,967.02, 28,413.54 and 11,553.09 is: 17,307.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.02 : 28,413.54 = 11,553.09 : x
  2. Step 2: Convert to fraction form
    18,967.02/28,413.54 = 11,553.09/x
  3. Step 3: Cross multiply
    18,967.02x = 28,413.54 × 11,553.09
  4. Step 4: Simplify right side
    18,967.02x = 328,264,184.84
  5. Step 5: Solve for x
    x = 328,264,184.84/18,967.02
  6. Step 6: Final answer
    x = 17,307.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.