Home / 13,176.24-18,178.10-8,395.34

Finding the Fourth Proportional to 13,176.24, 18,178.10 and 8,395.34

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Solution

The fourth proportional to 13,176.24, 18,178.10 and 8,395.34 is: 11,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.24 : 18,178.10 = 8,395.34 : x
  2. Step 2: Convert to fraction form
    13,176.24/18,178.10 = 8,395.34/x
  3. Step 3: Cross multiply
    13,176.24x = 18,178.10 × 8,395.34
  4. Step 4: Simplify right side
    13,176.24x = 152,611,327.02
  5. Step 5: Solve for x
    x = 152,611,327.02/13,176.24
  6. Step 6: Final answer
    x = 11,582.31

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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.