Home / 15,430.26-21,293.37-8,716.59

Finding the Fourth Proportional to 15,430.26, 21,293.37 and 8,716.59

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Solution

The fourth proportional to 15,430.26, 21,293.37 and 8,716.59 is: 12,028.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.26 : 21,293.37 = 8,716.59 : x
  2. Step 2: Convert to fraction form
    15,430.26/21,293.37 = 8,716.59/x
  3. Step 3: Cross multiply
    15,430.26x = 21,293.37 × 8,716.59
  4. Step 4: Simplify right side
    15,430.26x = 185,605,576.01
  5. Step 5: Solve for x
    x = 185,605,576.01/15,430.26
  6. Step 6: Final answer
    x = 12,028.67

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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.