Home / 12,228.58-16,810.46-10,520.81

Finding the Fourth Proportional to 12,228.58, 16,810.46 and 10,520.81

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Solution

The fourth proportional to 12,228.58, 16,810.46 and 10,520.81 is: 14,462.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228.58 : 16,810.46 = 10,520.81 : x
  2. Step 2: Convert to fraction form
    12,228.58/16,810.46 = 10,520.81/x
  3. Step 3: Cross multiply
    12,228.58x = 16,810.46 × 10,520.81
  4. Step 4: Simplify right side
    12,228.58x = 176,859,597.92
  5. Step 5: Solve for x
    x = 176,859,597.92/12,228.58
  6. Step 6: Final answer
    x = 14,462.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.