Home / 12,898.81-19,348.25-3,538.96

Finding the Fourth Proportional to 12,898.81, 19,348.25 and 3,538.96

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Solution

The fourth proportional to 12,898.81, 19,348.25 and 3,538.96 is: 5,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,898.81 : 19,348.25 = 3,538.96 : x
  2. Step 2: Convert to fraction form
    12,898.81/19,348.25 = 3,538.96/x
  3. Step 3: Cross multiply
    12,898.81x = 19,348.25 × 3,538.96
  4. Step 4: Simplify right side
    12,898.81x = 68,472,636.66
  5. Step 5: Solve for x
    x = 68,472,636.66/12,898.81
  6. Step 6: Final answer
    x = 5,308.45

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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.