Home / 12,672.37-19,008.60-4,354.78

Finding the Fourth Proportional to 12,672.37, 19,008.60 and 4,354.78

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Solution

The fourth proportional to 12,672.37, 19,008.60 and 4,354.78 is: 6,532.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,672.37 : 19,008.60 = 4,354.78 : x
  2. Step 2: Convert to fraction form
    12,672.37/19,008.60 = 4,354.78/x
  3. Step 3: Cross multiply
    12,672.37x = 19,008.60 × 4,354.78
  4. Step 4: Simplify right side
    12,672.37x = 82,778,271.11
  5. Step 5: Solve for x
    x = 82,778,271.11/12,672.37
  6. Step 6: Final answer
    x = 6,532.19

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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.