Home / 13,305.58-18,352.47-10,787.79

Finding the Fourth Proportional to 13,305.58, 18,352.47 and 10,787.79

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Solution

The fourth proportional to 13,305.58, 18,352.47 and 10,787.79 is: 14,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.58 : 18,352.47 = 10,787.79 : x
  2. Step 2: Convert to fraction form
    13,305.58/18,352.47 = 10,787.79/x
  3. Step 3: Cross multiply
    13,305.58x = 18,352.47 × 10,787.79
  4. Step 4: Simplify right side
    13,305.58x = 197,982,592.34
  5. Step 5: Solve for x
    x = 197,982,592.34/13,305.58
  6. Step 6: Final answer
    x = 14,879.67

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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.