Home / 13,153.07-18,150.29-7,183.47

Finding the Fourth Proportional to 13,153.07, 18,150.29 and 7,183.47

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Solution

The fourth proportional to 13,153.07, 18,150.29 and 7,183.47 is: 9,912.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153.07 : 18,150.29 = 7,183.47 : x
  2. Step 2: Convert to fraction form
    13,153.07/18,150.29 = 7,183.47/x
  3. Step 3: Cross multiply
    13,153.07x = 18,150.29 × 7,183.47
  4. Step 4: Simplify right side
    13,153.07x = 130,382,063.71
  5. Step 5: Solve for x
    x = 130,382,063.71/13,153.07
  6. Step 6: Final answer
    x = 9,912.67

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Half scale
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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.