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Finding the Fourth Proportional to 13,133, 18,118.98 and 7,467.08

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Solution

The fourth proportional to 13,133, 18,118.98 and 7,467.08 is: 10,301.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133 : 18,118.98 = 7,467.08 : x
  2. Step 2: Convert to fraction form
    13,133/18,118.98 = 7,467.08/x
  3. Step 3: Cross multiply
    13,133x = 18,118.98 × 7,467.08
  4. Step 4: Simplify right side
    13,133x = 135,295,873.18
  5. Step 5: Solve for x
    x = 135,295,873.18/13,133
  6. Step 6: Final answer
    x = 10,301.98

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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.