Home / 13,384.64-20,039.88-10,087.76

Finding the Fourth Proportional to 13,384.64, 20,039.88 and 10,087.76

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Solution

The fourth proportional to 13,384.64, 20,039.88 and 10,087.76 is: 15,103.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.64 : 20,039.88 = 10,087.76 : x
  2. Step 2: Convert to fraction form
    13,384.64/20,039.88 = 10,087.76/x
  3. Step 3: Cross multiply
    13,384.64x = 20,039.88 × 10,087.76
  4. Step 4: Simplify right side
    13,384.64x = 202,157,499.87
  5. Step 5: Solve for x
    x = 202,157,499.87/13,384.64
  6. Step 6: Final answer
    x = 15,103.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.