Home / 11,009.02-16,513.80-3,620.20

Finding the Fourth Proportional to 11,009.02, 16,513.80 and 3,620.20

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Solution

The fourth proportional to 11,009.02, 16,513.80 and 3,620.20 is: 5,430.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.02 : 16,513.80 = 3,620.20 : x
  2. Step 2: Convert to fraction form
    11,009.02/16,513.80 = 3,620.20/x
  3. Step 3: Cross multiply
    11,009.02x = 16,513.80 × 3,620.20
  4. Step 4: Simplify right side
    11,009.02x = 59,783,258.76
  5. Step 5: Solve for x
    x = 59,783,258.76/11,009.02
  6. Step 6: Final answer
    x = 5,430.39

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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.