Home / 13,671.44-18,866.60-8,005.16

Finding the Fourth Proportional to 13,671.44, 18,866.60 and 8,005.16

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Solution

The fourth proportional to 13,671.44, 18,866.60 and 8,005.16 is: 11,047.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.44 : 18,866.60 = 8,005.16 : x
  2. Step 2: Convert to fraction form
    13,671.44/18,866.60 = 8,005.16/x
  3. Step 3: Cross multiply
    13,671.44x = 18,866.60 × 8,005.16
  4. Step 4: Simplify right side
    13,671.44x = 151,030,151.66
  5. Step 5: Solve for x
    x = 151,030,151.66/13,671.44
  6. Step 6: Final answer
    x = 11,047.13

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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.