Home / 9,640.42-13,299.18-5,607.22

Finding the Fourth Proportional to 9,640.42, 13,299.18 and 5,607.22

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Solution

The fourth proportional to 9,640.42, 13,299.18 and 5,607.22 is: 7,735.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.42 : 13,299.18 = 5,607.22 : x
  2. Step 2: Convert to fraction form
    9,640.42/13,299.18 = 5,607.22/x
  3. Step 3: Cross multiply
    9,640.42x = 13,299.18 × 5,607.22
  4. Step 4: Simplify right side
    9,640.42x = 74,571,428.08
  5. Step 5: Solve for x
    x = 74,571,428.08/9,640.42
  6. Step 6: Final answer
    x = 7,735.29

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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.