Home / 8,457.49-12,685.94-2,217.45

Finding the Fourth Proportional to 8,457.49, 12,685.94 and 2,217.45

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Solution

The fourth proportional to 8,457.49, 12,685.94 and 2,217.45 is: 3,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.49 : 12,685.94 = 2,217.45 : x
  2. Step 2: Convert to fraction form
    8,457.49/12,685.94 = 2,217.45/x
  3. Step 3: Cross multiply
    8,457.49x = 12,685.94 × 2,217.45
  4. Step 4: Simplify right side
    8,457.49x = 28,130,437.65
  5. Step 5: Solve for x
    x = 28,130,437.65/8,457.49
  6. Step 6: Final answer
    x = 3,326.10

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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.