Home / 9,640.09-13,303.23-5,391.10

Finding the Fourth Proportional to 9,640.09, 13,303.23 and 5,391.10

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Solution

The fourth proportional to 9,640.09, 13,303.23 and 5,391.10 is: 7,439.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,640.09 : 13,303.23 = 5,391.10 : x
  2. Step 2: Convert to fraction form
    9,640.09/13,303.23 = 5,391.10/x
  3. Step 3: Cross multiply
    9,640.09x = 13,303.23 × 5,391.10
  4. Step 4: Simplify right side
    9,640.09x = 71,718,983.04
  5. Step 5: Solve for x
    x = 71,718,983.04/9,640.09
  6. Step 6: Final answer
    x = 7,439.66

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Double scale
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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.