Home / 13,116-18,100.08-7,527.36

Finding the Fourth Proportional to 13,116, 18,100.08 and 7,527.36

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Solution

The fourth proportional to 13,116, 18,100.08 and 7,527.36 is: 10,387.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,116 : 18,100.08 = 7,527.36 : x
  2. Step 2: Convert to fraction form
    13,116/18,100.08 = 7,527.36/x
  3. Step 3: Cross multiply
    13,116x = 18,100.08 × 7,527.36
  4. Step 4: Simplify right side
    13,116x = 136,245,818.19
  5. Step 5: Solve for x
    x = 136,245,818.19/13,116
  6. Step 6: Final answer
    x = 10,387.76

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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.