Home / 10,971.18-15,136.74-6,717.81

Finding the Fourth Proportional to 10,971.18, 15,136.74 and 6,717.81

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Solution

The fourth proportional to 10,971.18, 15,136.74 and 6,717.81 is: 9,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971.18 : 15,136.74 = 6,717.81 : x
  2. Step 2: Convert to fraction form
    10,971.18/15,136.74 = 6,717.81/x
  3. Step 3: Cross multiply
    10,971.18x = 15,136.74 × 6,717.81
  4. Step 4: Simplify right side
    10,971.18x = 101,685,743.34
  5. Step 5: Solve for x
    x = 101,685,743.34/10,971.18
  6. Step 6: Final answer
    x = 9,268.44

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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.