Home / 9,916.09-13,683.76-5,439.75

Finding the Fourth Proportional to 9,916.09, 13,683.76 and 5,439.75

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Solution

The fourth proportional to 9,916.09, 13,683.76 and 5,439.75 is: 7,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.09 : 13,683.76 = 5,439.75 : x
  2. Step 2: Convert to fraction form
    9,916.09/13,683.76 = 5,439.75/x
  3. Step 3: Cross multiply
    9,916.09x = 13,683.76 × 5,439.75
  4. Step 4: Simplify right side
    9,916.09x = 74,436,212.34
  5. Step 5: Solve for x
    x = 74,436,212.34/9,916.09
  6. Step 6: Final answer
    x = 7,506.61

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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.