Home / 15,150.50-22,719.08-8,128.44

Finding the Fourth Proportional to 15,150.50, 22,719.08 and 8,128.44

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Solution

The fourth proportional to 15,150.50, 22,719.08 and 8,128.44 is: 12,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,150.50 : 22,719.08 = 8,128.44 : x
  2. Step 2: Convert to fraction form
    15,150.50/22,719.08 = 8,128.44/x
  3. Step 3: Cross multiply
    15,150.50x = 22,719.08 × 8,128.44
  4. Step 4: Simplify right side
    15,150.50x = 184,670,678.64
  5. Step 5: Solve for x
    x = 184,670,678.64/15,150.50
  6. Step 6: Final answer
    x = 12,189.08

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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.