Home / 13,533.48-20,285.64-8,838.72

Finding the Fourth Proportional to 13,533.48, 20,285.64 and 8,838.72

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Solution

The fourth proportional to 13,533.48, 20,285.64 and 8,838.72 is: 13,248.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.48 : 20,285.64 = 8,838.72 : x
  2. Step 2: Convert to fraction form
    13,533.48/20,285.64 = 8,838.72/x
  3. Step 3: Cross multiply
    13,533.48x = 20,285.64 × 8,838.72
  4. Step 4: Simplify right side
    13,533.48x = 179,299,091.98
  5. Step 5: Solve for x
    x = 179,299,091.98/13,533.48
  6. Step 6: Final answer
    x = 13,248.56

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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.