Home / 11,922.58-16,453.70-8,386.93

Finding the Fourth Proportional to 11,922.58, 16,453.70 and 8,386.93

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Solution

The fourth proportional to 11,922.58, 16,453.70 and 8,386.93 is: 11,574.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,922.58 : 16,453.70 = 8,386.93 : x
  2. Step 2: Convert to fraction form
    11,922.58/16,453.70 = 8,386.93/x
  3. Step 3: Cross multiply
    11,922.58x = 16,453.70 × 8,386.93
  4. Step 4: Simplify right side
    11,922.58x = 137,996,030.14
  5. Step 5: Solve for x
    x = 137,996,030.14/11,922.58
  6. Step 6: Final answer
    x = 11,574.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.