Home / 13,162.77-19,650.45-12,701.46

Finding the Fourth Proportional to 13,162.77, 19,650.45 and 12,701.46

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Solution

The fourth proportional to 13,162.77, 19,650.45 and 12,701.46 is: 18,961.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.77 : 19,650.45 = 12,701.46 : x
  2. Step 2: Convert to fraction form
    13,162.77/19,650.45 = 12,701.46/x
  3. Step 3: Cross multiply
    13,162.77x = 19,650.45 × 12,701.46
  4. Step 4: Simplify right side
    13,162.77x = 249,589,404.66
  5. Step 5: Solve for x
    x = 249,589,404.66/13,162.77
  6. Step 6: Final answer
    x = 18,961.77

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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.