Home / 9,916.89-13,685.16-5,440.83

Finding the Fourth Proportional to 9,916.89, 13,685.16 and 5,440.83

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Solution

The fourth proportional to 9,916.89, 13,685.16 and 5,440.83 is: 7,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.89 : 13,685.16 = 5,440.83 : x
  2. Step 2: Convert to fraction form
    9,916.89/13,685.16 = 5,440.83/x
  3. Step 3: Cross multiply
    9,916.89x = 13,685.16 × 5,440.83
  4. Step 4: Simplify right side
    9,916.89x = 74,458,629.08
  5. Step 5: Solve for x
    x = 74,458,629.08/9,916.89
  6. Step 6: Final answer
    x = 7,508.26

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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.