Home / 13,105.02-19,556.90-11,703.72

Finding the Fourth Proportional to 13,105.02, 19,556.90 and 11,703.72

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Solution

The fourth proportional to 13,105.02, 19,556.90 and 11,703.72 is: 17,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105.02 : 19,556.90 = 11,703.72 : x
  2. Step 2: Convert to fraction form
    13,105.02/19,556.90 = 11,703.72/x
  3. Step 3: Cross multiply
    13,105.02x = 19,556.90 × 11,703.72
  4. Step 4: Simplify right side
    13,105.02x = 228,888,423.15
  5. Step 5: Solve for x
    x = 228,888,423.15/13,105.02
  6. Step 6: Final answer
    x = 17,465.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.