Home / 9,916.71-13,685.36-5,440.74

Finding the Fourth Proportional to 9,916.71, 13,685.36 and 5,440.74

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Solution

The fourth proportional to 9,916.71, 13,685.36 and 5,440.74 is: 7,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.71 : 13,685.36 = 5,440.74 : x
  2. Step 2: Convert to fraction form
    9,916.71/13,685.36 = 5,440.74/x
  3. Step 3: Cross multiply
    9,916.71x = 13,685.36 × 5,440.74
  4. Step 4: Simplify right side
    9,916.71x = 74,458,458.36
  5. Step 5: Solve for x
    x = 74,458,458.36/9,916.71
  6. Step 6: Final answer
    x = 7,508.38

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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.