Home / 13,176.56-18,161.64-10,931.24

Finding the Fourth Proportional to 13,176.56, 18,161.64 and 10,931.24

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Solution

The fourth proportional to 13,176.56, 18,161.64 and 10,931.24 is: 15,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.56 : 18,161.64 = 10,931.24 : x
  2. Step 2: Convert to fraction form
    13,176.56/18,161.64 = 10,931.24/x
  3. Step 3: Cross multiply
    13,176.56x = 18,161.64 × 10,931.24
  4. Step 4: Simplify right side
    13,176.56x = 198,529,245.63
  5. Step 5: Solve for x
    x = 198,529,245.63/13,176.56
  6. Step 6: Final answer
    x = 15,066.85

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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.