Home / 12,173.18-18,267.75-4,275.50

Finding the Fourth Proportional to 12,173.18, 18,267.75 and 4,275.50

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Solution

The fourth proportional to 12,173.18, 18,267.75 and 4,275.50 is: 6,416.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.18 : 18,267.75 = 4,275.50 : x
  2. Step 2: Convert to fraction form
    12,173.18/18,267.75 = 4,275.50/x
  3. Step 3: Cross multiply
    12,173.18x = 18,267.75 × 4,275.50
  4. Step 4: Simplify right side
    12,173.18x = 78,103,673.79
  5. Step 5: Solve for x
    x = 78,103,673.79/12,173.18
  6. Step 6: Final answer
    x = 6,416.05

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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.