Home / 15,226.74-21,040.29-11,878.02

Finding the Fourth Proportional to 15,226.74, 21,040.29 and 11,878.02

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Solution

The fourth proportional to 15,226.74, 21,040.29 and 11,878.02 is: 16,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.74 : 21,040.29 = 11,878.02 : x
  2. Step 2: Convert to fraction form
    15,226.74/21,040.29 = 11,878.02/x
  3. Step 3: Cross multiply
    15,226.74x = 21,040.29 × 11,878.02
  4. Step 4: Simplify right side
    15,226.74x = 249,916,985.43
  5. Step 5: Solve for x
    x = 249,916,985.43/15,226.74
  6. Step 6: Final answer
    x = 16,413.03

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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.