Home / 12,992.41-19,490.40-4,670.88

Finding the Fourth Proportional to 12,992.41, 19,490.40 and 4,670.88

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Solution

The fourth proportional to 12,992.41, 19,490.40 and 4,670.88 is: 7,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992.41 : 19,490.40 = 4,670.88 : x
  2. Step 2: Convert to fraction form
    12,992.41/19,490.40 = 4,670.88/x
  3. Step 3: Cross multiply
    12,992.41x = 19,490.40 × 4,670.88
  4. Step 4: Simplify right side
    12,992.41x = 91,037,319.55
  5. Step 5: Solve for x
    x = 91,037,319.55/12,992.41
  6. Step 6: Final answer
    x = 7,006.96

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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.