Home / 12,176.61-18,256.68-4,776.45

Finding the Fourth Proportional to 12,176.61, 18,256.68 and 4,776.45

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Solution

The fourth proportional to 12,176.61, 18,256.68 and 4,776.45 is: 7,161.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.61 : 18,256.68 = 4,776.45 : x
  2. Step 2: Convert to fraction form
    12,176.61/18,256.68 = 4,776.45/x
  3. Step 3: Cross multiply
    12,176.61x = 18,256.68 × 4,776.45
  4. Step 4: Simplify right side
    12,176.61x = 87,202,119.19
  5. Step 5: Solve for x
    x = 87,202,119.19/12,176.61
  6. Step 6: Final answer
    x = 7,161.44

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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.