Home / 12,756.77-19,136.88-4,435.71

Finding the Fourth Proportional to 12,756.77, 19,136.88 and 4,435.71

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Solution

The fourth proportional to 12,756.77, 19,136.88 and 4,435.71 is: 6,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.77 : 19,136.88 = 4,435.71 : x
  2. Step 2: Convert to fraction form
    12,756.77/19,136.88 = 4,435.71/x
  3. Step 3: Cross multiply
    12,756.77x = 19,136.88 × 4,435.71
  4. Step 4: Simplify right side
    12,756.77x = 84,885,649.98
  5. Step 5: Solve for x
    x = 84,885,649.98/12,756.77
  6. Step 6: Final answer
    x = 6,654.16

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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.