Home / 12,817.96-19,225.02-10,640.68

Finding the Fourth Proportional to 12,817.96, 19,225.02 and 10,640.68

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Solution

The fourth proportional to 12,817.96, 19,225.02 and 10,640.68 is: 15,959.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,817.96 : 19,225.02 = 10,640.68 : x
  2. Step 2: Convert to fraction form
    12,817.96/19,225.02 = 10,640.68/x
  3. Step 3: Cross multiply
    12,817.96x = 19,225.02 × 10,640.68
  4. Step 4: Simplify right side
    12,817.96x = 204,567,285.81
  5. Step 5: Solve for x
    x = 204,567,285.81/12,817.96
  6. Step 6: Final answer
    x = 15,959.43

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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.