Home / 12,398.85-18,597.96-3,038.78

Finding the Fourth Proportional to 12,398.85, 18,597.96 and 3,038.78

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Solution

The fourth proportional to 12,398.85, 18,597.96 and 3,038.78 is: 4,558.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.85 : 18,597.96 = 3,038.78 : x
  2. Step 2: Convert to fraction form
    12,398.85/18,597.96 = 3,038.78/x
  3. Step 3: Cross multiply
    12,398.85x = 18,597.96 × 3,038.78
  4. Step 4: Simplify right side
    12,398.85x = 56,515,155.38
  5. Step 5: Solve for x
    x = 56,515,155.38/12,398.85
  6. Step 6: Final answer
    x = 4,558.10

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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.