Home / 9,916.14-13,684.19-5,439.86

Finding the Fourth Proportional to 9,916.14, 13,684.19 and 5,439.86

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Solution

The fourth proportional to 9,916.14, 13,684.19 and 5,439.86 is: 7,506.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.14 : 13,684.19 = 5,439.86 : x
  2. Step 2: Convert to fraction form
    9,916.14/13,684.19 = 5,439.86/x
  3. Step 3: Cross multiply
    9,916.14x = 13,684.19 × 5,439.86
  4. Step 4: Simplify right side
    9,916.14x = 74,440,077.81
  5. Step 5: Solve for x
    x = 74,440,077.81/9,916.14
  6. Step 6: Final answer
    x = 7,506.96

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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.