Home / 12,184.86-18,306.45-7,810.86

Finding the Fourth Proportional to 12,184.86, 18,306.45 and 7,810.86

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Solution

The fourth proportional to 12,184.86, 18,306.45 and 7,810.86 is: 11,734.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.86 : 18,306.45 = 7,810.86 : x
  2. Step 2: Convert to fraction form
    12,184.86/18,306.45 = 7,810.86/x
  3. Step 3: Cross multiply
    12,184.86x = 18,306.45 × 7,810.86
  4. Step 4: Simplify right side
    12,184.86x = 142,989,118.05
  5. Step 5: Solve for x
    x = 142,989,118.05/12,184.86
  6. Step 6: Final answer
    x = 11,734.98

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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.