Home / 8,319.42-12,477.81-2,776.62

Finding the Fourth Proportional to 8,319.42, 12,477.81 and 2,776.62

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Solution

The fourth proportional to 8,319.42, 12,477.81 and 2,776.62 is: 4,164.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.42 : 12,477.81 = 2,776.62 : x
  2. Step 2: Convert to fraction form
    8,319.42/12,477.81 = 2,776.62/x
  3. Step 3: Cross multiply
    8,319.42x = 12,477.81 × 2,776.62
  4. Step 4: Simplify right side
    8,319.42x = 34,646,136.80
  5. Step 5: Solve for x
    x = 34,646,136.80/8,319.42
  6. Step 6: Final answer
    x = 4,164.49

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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.