Home / 12,415.23-18,623.45-4,095.21

Finding the Fourth Proportional to 12,415.23, 18,623.45 and 4,095.21

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Solution

The fourth proportional to 12,415.23, 18,623.45 and 4,095.21 is: 6,143.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.23 : 18,623.45 = 4,095.21 : x
  2. Step 2: Convert to fraction form
    12,415.23/18,623.45 = 4,095.21/x
  3. Step 3: Cross multiply
    12,415.23x = 18,623.45 × 4,095.21
  4. Step 4: Simplify right side
    12,415.23x = 76,266,938.67
  5. Step 5: Solve for x
    x = 76,266,938.67/12,415.23
  6. Step 6: Final answer
    x = 6,143.01

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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.