Home / 15,128.25-22,643.85-8,090.67

Finding the Fourth Proportional to 15,128.25, 22,643.85 and 8,090.67

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Solution

The fourth proportional to 15,128.25, 22,643.85 and 8,090.67 is: 12,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,128.25 : 22,643.85 = 8,090.67 : x
  2. Step 2: Convert to fraction form
    15,128.25/22,643.85 = 8,090.67/x
  3. Step 3: Cross multiply
    15,128.25x = 22,643.85 × 8,090.67
  4. Step 4: Simplify right side
    15,128.25x = 183,203,905.76
  5. Step 5: Solve for x
    x = 183,203,905.76/15,128.25
  6. Step 6: Final answer
    x = 12,110.05

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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.