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Finding the Fourth Proportional to 7,888.03, 11,828.80 and 2,955.13

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Solution

The fourth proportional to 7,888.03, 11,828.80 and 2,955.13 is: 4,431.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.03 : 11,828.80 = 2,955.13 : x
  2. Step 2: Convert to fraction form
    7,888.03/11,828.80 = 2,955.13/x
  3. Step 3: Cross multiply
    7,888.03x = 11,828.80 × 2,955.13
  4. Step 4: Simplify right side
    7,888.03x = 34,955,615.87
  5. Step 5: Solve for x
    x = 34,955,615.87/7,888.03
  6. Step 6: Final answer
    x = 4,431.48

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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.