Home / 13,261.05-19,888.78-3,898.53

Finding the Fourth Proportional to 13,261.05, 19,888.78 and 3,898.53

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Solution

The fourth proportional to 13,261.05, 19,888.78 and 3,898.53 is: 5,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.05 : 19,888.78 = 3,898.53 : x
  2. Step 2: Convert to fraction form
    13,261.05/19,888.78 = 3,898.53/x
  3. Step 3: Cross multiply
    13,261.05x = 19,888.78 × 3,898.53
  4. Step 4: Simplify right side
    13,261.05x = 77,537,005.49
  5. Step 5: Solve for x
    x = 77,537,005.49/13,261.05
  6. Step 6: Final answer
    x = 5,846.97

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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.