Home / 10,318.98-15,478.38-3,393.48

Finding the Fourth Proportional to 10,318.98, 15,478.38 and 3,393.48

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Solution

The fourth proportional to 10,318.98, 15,478.38 and 3,393.48 is: 5,090.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.98 : 15,478.38 = 3,393.48 : x
  2. Step 2: Convert to fraction form
    10,318.98/15,478.38 = 3,393.48/x
  3. Step 3: Cross multiply
    10,318.98x = 15,478.38 × 3,393.48
  4. Step 4: Simplify right side
    10,318.98x = 52,525,572.96
  5. Step 5: Solve for x
    x = 52,525,572.96/10,318.98
  6. Step 6: Final answer
    x = 5,090.19

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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.