Home / 13,533.08-20,278.35-10,409.31

Finding the Fourth Proportional to 13,533.08, 20,278.35 and 10,409.31

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Solution

The fourth proportional to 13,533.08, 20,278.35 and 10,409.31 is: 15,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,533.08 : 20,278.35 = 10,409.31 : x
  2. Step 2: Convert to fraction form
    13,533.08/20,278.35 = 10,409.31/x
  3. Step 3: Cross multiply
    13,533.08x = 20,278.35 × 10,409.31
  4. Step 4: Simplify right side
    13,533.08x = 211,083,631.44
  5. Step 5: Solve for x
    x = 211,083,631.44/13,533.08
  6. Step 6: Final answer
    x = 15,597.60

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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.