Home / 11,321.03-15,621.35-6,285.29

Finding the Fourth Proportional to 11,321.03, 15,621.35 and 6,285.29

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Solution

The fourth proportional to 11,321.03, 15,621.35 and 6,285.29 is: 8,672.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.03 : 15,621.35 = 6,285.29 : x
  2. Step 2: Convert to fraction form
    11,321.03/15,621.35 = 6,285.29/x
  3. Step 3: Cross multiply
    11,321.03x = 15,621.35 × 6,285.29
  4. Step 4: Simplify right side
    11,321.03x = 98,184,769.71
  5. Step 5: Solve for x
    x = 98,184,769.71/11,321.03
  6. Step 6: Final answer
    x = 8,672.78

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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.