Home / 9,916.66-13,685.15-5,440.33

Finding the Fourth Proportional to 9,916.66, 13,685.15 and 5,440.33

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Solution

The fourth proportional to 9,916.66, 13,685.15 and 5,440.33 is: 7,507.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.66 : 13,685.15 = 5,440.33 : x
  2. Step 2: Convert to fraction form
    9,916.66/13,685.15 = 5,440.33/x
  3. Step 3: Cross multiply
    9,916.66x = 13,685.15 × 5,440.33
  4. Step 4: Simplify right side
    9,916.66x = 74,451,732.10
  5. Step 5: Solve for x
    x = 74,451,732.10/9,916.66
  6. Step 6: Final answer
    x = 7,507.74

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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.