Home / 19,428.06-26,787.79-13,298.72

Finding the Fourth Proportional to 19,428.06, 26,787.79 and 13,298.72

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Solution

The fourth proportional to 19,428.06, 26,787.79 and 13,298.72 is: 18,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.06 : 26,787.79 = 13,298.72 : x
  2. Step 2: Convert to fraction form
    19,428.06/26,787.79 = 13,298.72/x
  3. Step 3: Cross multiply
    19,428.06x = 26,787.79 × 13,298.72
  4. Step 4: Simplify right side
    19,428.06x = 356,243,318.63
  5. Step 5: Solve for x
    x = 356,243,318.63/19,428.06
  6. Step 6: Final answer
    x = 18,336.54

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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.