Home / 13,349.46-18,430.80-8,571.45

Finding the Fourth Proportional to 13,349.46, 18,430.80 and 8,571.45

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Solution

The fourth proportional to 13,349.46, 18,430.80 and 8,571.45 is: 11,834.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.46 : 18,430.80 = 8,571.45 : x
  2. Step 2: Convert to fraction form
    13,349.46/18,430.80 = 8,571.45/x
  3. Step 3: Cross multiply
    13,349.46x = 18,430.80 × 8,571.45
  4. Step 4: Simplify right side
    13,349.46x = 157,978,680.66
  5. Step 5: Solve for x
    x = 157,978,680.66/13,349.46
  6. Step 6: Final answer
    x = 11,834.09

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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.