Home / 14,189.36-19,581-7,902.32

Finding the Fourth Proportional to 14,189.36, 19,581 and 7,902.32

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Solution

The fourth proportional to 14,189.36, 19,581 and 7,902.32 is: 10,905.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,189.36 : 19,581 = 7,902.32 : x
  2. Step 2: Convert to fraction form
    14,189.36/19,581 = 7,902.32/x
  3. Step 3: Cross multiply
    14,189.36x = 19,581 × 7,902.32
  4. Step 4: Simplify right side
    14,189.36x = 154,735,327.92
  5. Step 5: Solve for x
    x = 154,735,327.92/14,189.36
  6. Step 6: Final answer
    x = 10,905.03

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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.