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Finding the Fourth Proportional to 11,316.51, 16,956.81 and 7,605.09

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Solution

The fourth proportional to 11,316.51, 16,956.81 and 7,605.09 is: 11,395.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,316.51 : 16,956.81 = 7,605.09 : x
  2. Step 2: Convert to fraction form
    11,316.51/16,956.81 = 7,605.09/x
  3. Step 3: Cross multiply
    11,316.51x = 16,956.81 × 7,605.09
  4. Step 4: Simplify right side
    11,316.51x = 128,958,066.16
  5. Step 5: Solve for x
    x = 128,958,066.16/11,316.51
  6. Step 6: Final answer
    x = 11,395.57

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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.