Home / 11,603.25-16,002.77-9,999.45

Finding the Fourth Proportional to 11,603.25, 16,002.77 and 9,999.45

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Solution

The fourth proportional to 11,603.25, 16,002.77 and 9,999.45 is: 13,790.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,603.25 : 16,002.77 = 9,999.45 : x
  2. Step 2: Convert to fraction form
    11,603.25/16,002.77 = 9,999.45/x
  3. Step 3: Cross multiply
    11,603.25x = 16,002.77 × 9,999.45
  4. Step 4: Simplify right side
    11,603.25x = 160,018,848.48
  5. Step 5: Solve for x
    x = 160,018,848.48/11,603.25
  6. Step 6: Final answer
    x = 13,790.86

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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.