Home / 12,014.60-18,000.30-7,392.20

Finding the Fourth Proportional to 12,014.60, 18,000.30 and 7,392.20

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Solution

The fourth proportional to 12,014.60, 18,000.30 and 7,392.20 is: 11,075.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.60 : 18,000.30 = 7,392.20 : x
  2. Step 2: Convert to fraction form
    12,014.60/18,000.30 = 7,392.20/x
  3. Step 3: Cross multiply
    12,014.60x = 18,000.30 × 7,392.20
  4. Step 4: Simplify right side
    12,014.60x = 133,061,817.66
  5. Step 5: Solve for x
    x = 133,061,817.66/12,014.60
  6. Step 6: Final answer
    x = 11,075.01

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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.