Home / 13,663.98-18,852.21-8,353.35

Finding the Fourth Proportional to 13,663.98, 18,852.21 and 8,353.35

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Solution

The fourth proportional to 13,663.98, 18,852.21 and 8,353.35 is: 11,525.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,663.98 : 18,852.21 = 8,353.35 : x
  2. Step 2: Convert to fraction form
    13,663.98/18,852.21 = 8,353.35/x
  3. Step 3: Cross multiply
    13,663.98x = 18,852.21 × 8,353.35
  4. Step 4: Simplify right side
    13,663.98x = 157,479,108.40
  5. Step 5: Solve for x
    x = 157,479,108.40/13,663.98
  6. Step 6: Final answer
    x = 11,525.13

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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.