Home / 13,472.19-18,588.69-8,168.31

Finding the Fourth Proportional to 13,472.19, 18,588.69 and 8,168.31

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Solution

The fourth proportional to 13,472.19, 18,588.69 and 8,168.31 is: 11,270.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.19 : 18,588.69 = 8,168.31 : x
  2. Step 2: Convert to fraction form
    13,472.19/18,588.69 = 8,168.31/x
  3. Step 3: Cross multiply
    13,472.19x = 18,588.69 × 8,168.31
  4. Step 4: Simplify right side
    13,472.19x = 151,838,182.41
  5. Step 5: Solve for x
    x = 151,838,182.41/13,472.19
  6. Step 6: Final answer
    x = 11,270.49

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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.