Home / 13,037.79-19,530.77-8,406.75

Finding the Fourth Proportional to 13,037.79, 19,530.77 and 8,406.75

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Solution

The fourth proportional to 13,037.79, 19,530.77 and 8,406.75 is: 12,593.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,037.79 : 19,530.77 = 8,406.75 : x
  2. Step 2: Convert to fraction form
    13,037.79/19,530.77 = 8,406.75/x
  3. Step 3: Cross multiply
    13,037.79x = 19,530.77 × 8,406.75
  4. Step 4: Simplify right side
    13,037.79x = 164,190,258.66
  5. Step 5: Solve for x
    x = 164,190,258.66/13,037.79
  6. Step 6: Final answer
    x = 12,593.41

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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.