Home / 19,127.81-28,693.37-5,276.81

Finding the Fourth Proportional to 19,127.81, 28,693.37 and 5,276.81

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Solution

The fourth proportional to 19,127.81, 28,693.37 and 5,276.81 is: 7,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.81 : 28,693.37 = 5,276.81 : x
  2. Step 2: Convert to fraction form
    19,127.81/28,693.37 = 5,276.81/x
  3. Step 3: Cross multiply
    19,127.81x = 28,693.37 × 5,276.81
  4. Step 4: Simplify right side
    19,127.81x = 151,409,546.68
  5. Step 5: Solve for x
    x = 151,409,546.68/19,127.81
  6. Step 6: Final answer
    x = 7,915.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.