Home / 13,384.36-18,470.46-7,795.36

Finding the Fourth Proportional to 13,384.36, 18,470.46 and 7,795.36

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Solution

The fourth proportional to 13,384.36, 18,470.46 and 7,795.36 is: 10,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.36 : 18,470.46 = 7,795.36 : x
  2. Step 2: Convert to fraction form
    13,384.36/18,470.46 = 7,795.36/x
  3. Step 3: Cross multiply
    13,384.36x = 18,470.46 × 7,795.36
  4. Step 4: Simplify right side
    13,384.36x = 143,983,885.07
  5. Step 5: Solve for x
    x = 143,983,885.07/13,384.36
  6. Step 6: Final answer
    x = 10,757.62

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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.