Home / 12,450.18-18,655.81-7,823.46

Finding the Fourth Proportional to 12,450.18, 18,655.81 and 7,823.46

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Solution

The fourth proportional to 12,450.18, 18,655.81 and 7,823.46 is: 11,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.18 : 18,655.81 = 7,823.46 : x
  2. Step 2: Convert to fraction form
    12,450.18/18,655.81 = 7,823.46/x
  3. Step 3: Cross multiply
    12,450.18x = 18,655.81 × 7,823.46
  4. Step 4: Simplify right side
    12,450.18x = 145,952,983.30
  5. Step 5: Solve for x
    x = 145,952,983.30/12,450.18
  6. Step 6: Final answer
    x = 11,722.96

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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.