Home / 9,916.99-13,685.44-5,440.77

Finding the Fourth Proportional to 9,916.99, 13,685.44 and 5,440.77

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Solution

The fourth proportional to 9,916.99, 13,685.44 and 5,440.77 is: 7,508.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,916.99 : 13,685.44 = 5,440.77 : x
  2. Step 2: Convert to fraction form
    9,916.99/13,685.44 = 5,440.77/x
  3. Step 3: Cross multiply
    9,916.99x = 13,685.44 × 5,440.77
  4. Step 4: Simplify right side
    9,916.99x = 74,459,331.39
  5. Step 5: Solve for x
    x = 74,459,331.39/9,916.99
  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.