Home / 12,014.74-18,020.40-8,698.87

Finding the Fourth Proportional to 12,014.74, 18,020.40 and 8,698.87

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Solution

The fourth proportional to 12,014.74, 18,020.40 and 8,698.87 is: 13,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.74 : 18,020.40 = 8,698.87 : x
  2. Step 2: Convert to fraction form
    12,014.74/18,020.40 = 8,698.87/x
  3. Step 3: Cross multiply
    12,014.74x = 18,020.40 × 8,698.87
  4. Step 4: Simplify right side
    12,014.74x = 156,757,116.95
  5. Step 5: Solve for x
    x = 156,757,116.95/12,014.74
  6. Step 6: Final answer
    x = 13,047.07

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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.