Home / 13,381.48-18,466.19-7,412.98

Finding the Fourth Proportional to 13,381.48, 18,466.19 and 7,412.98

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Solution

The fourth proportional to 13,381.48, 18,466.19 and 7,412.98 is: 10,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,381.48 : 18,466.19 = 7,412.98 : x
  2. Step 2: Convert to fraction form
    13,381.48/18,466.19 = 7,412.98/x
  3. Step 3: Cross multiply
    13,381.48x = 18,466.19 × 7,412.98
  4. Step 4: Simplify right side
    13,381.48x = 136,889,497.15
  5. Step 5: Solve for x
    x = 136,889,497.15/13,381.48
  6. Step 6: Final answer
    x = 10,229.77

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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.