Home / 13,409.36-20,109.24-4,641.92

Finding the Fourth Proportional to 13,409.36, 20,109.24 and 4,641.92

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Solution

The fourth proportional to 13,409.36, 20,109.24 and 4,641.92 is: 6,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.36 : 20,109.24 = 4,641.92 : x
  2. Step 2: Convert to fraction form
    13,409.36/20,109.24 = 4,641.92/x
  3. Step 3: Cross multiply
    13,409.36x = 20,109.24 × 4,641.92
  4. Step 4: Simplify right side
    13,409.36x = 93,345,483.34
  5. Step 5: Solve for x
    x = 93,345,483.34/13,409.36
  6. Step 6: Final answer
    x = 6,961.22

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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.