Home / 12,942.59-17,860.84-7,277.58

Finding the Fourth Proportional to 12,942.59, 17,860.84 and 7,277.58

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Solution

The fourth proportional to 12,942.59, 17,860.84 and 7,277.58 is: 10,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.59 : 17,860.84 = 7,277.58 : x
  2. Step 2: Convert to fraction form
    12,942.59/17,860.84 = 7,277.58/x
  3. Step 3: Cross multiply
    12,942.59x = 17,860.84 × 7,277.58
  4. Step 4: Simplify right side
    12,942.59x = 129,983,673.77
  5. Step 5: Solve for x
    x = 129,983,673.77/12,942.59
  6. Step 6: Final answer
    x = 10,043.10

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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.