Home / 9,640.23-13,303.08-5,664.75

Finding the Fourth Proportional to 9,640.23, 13,303.08 and 5,664.75

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Solution

The fourth proportional to 9,640.23, 13,303.08 and 5,664.75 is: 7,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.23 : 13,303.08 = 5,664.75 : x
  2. Step 2: Convert to fraction form
    9,640.23/13,303.08 = 5,664.75/x
  3. Step 3: Cross multiply
    9,640.23x = 13,303.08 × 5,664.75
  4. Step 4: Simplify right side
    9,640.23x = 75,358,622.43
  5. Step 5: Solve for x
    x = 75,358,622.43/9,640.23
  6. Step 6: Final answer
    x = 7,817.10

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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.