Home / 13,533.96-18,661.66-8,747.60

Finding the Fourth Proportional to 13,533.96, 18,661.66 and 8,747.60

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Solution

The fourth proportional to 13,533.96, 18,661.66 and 8,747.60 is: 12,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.96 : 18,661.66 = 8,747.60 : x
  2. Step 2: Convert to fraction form
    13,533.96/18,661.66 = 8,747.60/x
  3. Step 3: Cross multiply
    13,533.96x = 18,661.66 × 8,747.60
  4. Step 4: Simplify right side
    13,533.96x = 163,244,737.02
  5. Step 5: Solve for x
    x = 163,244,737.02/13,533.96
  6. Step 6: Final answer
    x = 12,061.86

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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.