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Finding the Fourth Proportional to 13,018.54, 17,955.86 and 8,482.22

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Solution

The fourth proportional to 13,018.54, 17,955.86 and 8,482.22 is: 11,699.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.54 : 17,955.86 = 8,482.22 : x
  2. Step 2: Convert to fraction form
    13,018.54/17,955.86 = 8,482.22/x
  3. Step 3: Cross multiply
    13,018.54x = 17,955.86 × 8,482.22
  4. Step 4: Simplify right side
    13,018.54x = 152,305,554.81
  5. Step 5: Solve for x
    x = 152,305,554.81/13,018.54
  6. Step 6: Final answer
    x = 11,699.13

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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.