Home / 12,861.09-19,289.64-4,962.45

Finding the Fourth Proportional to 12,861.09, 19,289.64 and 4,962.45

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Solution

The fourth proportional to 12,861.09, 19,289.64 and 4,962.45 is: 7,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.09 : 19,289.64 = 4,962.45 : x
  2. Step 2: Convert to fraction form
    12,861.09/19,289.64 = 4,962.45/x
  3. Step 3: Cross multiply
    12,861.09x = 19,289.64 × 4,962.45
  4. Step 4: Simplify right side
    12,861.09x = 95,723,937.05
  5. Step 5: Solve for x
    x = 95,723,937.05/12,861.09
  6. Step 6: Final answer
    x = 7,442.91

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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.