Home / 12,853.25-19,282.50-5,457.68

Finding the Fourth Proportional to 12,853.25, 19,282.50 and 5,457.68

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Solution

The fourth proportional to 12,853.25, 19,282.50 and 5,457.68 is: 8,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,853.25 : 19,282.50 = 5,457.68 : x
  2. Step 2: Convert to fraction form
    12,853.25/19,282.50 = 5,457.68/x
  3. Step 3: Cross multiply
    12,853.25x = 19,282.50 × 5,457.68
  4. Step 4: Simplify right side
    12,853.25x = 105,237,618.19
  5. Step 5: Solve for x
    x = 105,237,618.19/12,853.25
  6. Step 6: Final answer
    x = 8,187.63

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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.