Home / 19,505.14-26,908.41-12,428.98

Finding the Fourth Proportional to 19,505.14, 26,908.41 and 12,428.98

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Solution

The fourth proportional to 19,505.14, 26,908.41 and 12,428.98 is: 17,146.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,505.14 : 26,908.41 = 12,428.98 : x
  2. Step 2: Convert to fraction form
    19,505.14/26,908.41 = 12,428.98/x
  3. Step 3: Cross multiply
    19,505.14x = 26,908.41 × 12,428.98
  4. Step 4: Simplify right side
    19,505.14x = 334,444,089.72
  5. Step 5: Solve for x
    x = 334,444,089.72/19,505.14
  6. Step 6: Final answer
    x = 17,146.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.