Home / 12,359.54-18,539.15-2,999.63

Finding the Fourth Proportional to 12,359.54, 18,539.15 and 2,999.63

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Solution

The fourth proportional to 12,359.54, 18,539.15 and 2,999.63 is: 4,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.54 : 18,539.15 = 2,999.63 : x
  2. Step 2: Convert to fraction form
    12,359.54/18,539.15 = 2,999.63/x
  3. Step 3: Cross multiply
    12,359.54x = 18,539.15 × 2,999.63
  4. Step 4: Simplify right side
    12,359.54x = 55,610,482.82
  5. Step 5: Solve for x
    x = 55,610,482.82/12,359.54
  6. Step 6: Final answer
    x = 4,499.40

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Similar ratio
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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.