Home / 13,145.07-19,723.38-6,903.64

Finding the Fourth Proportional to 13,145.07, 19,723.38 and 6,903.64

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Solution

The fourth proportional to 13,145.07, 19,723.38 and 6,903.64 is: 10,358.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.07 : 19,723.38 = 6,903.64 : x
  2. Step 2: Convert to fraction form
    13,145.07/19,723.38 = 6,903.64/x
  3. Step 3: Cross multiply
    13,145.07x = 19,723.38 × 6,903.64
  4. Step 4: Simplify right side
    13,145.07x = 136,163,113.87
  5. Step 5: Solve for x
    x = 136,163,113.87/13,145.07
  6. Step 6: Final answer
    x = 10,358.49

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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.