Home / 12,942.18-19,408.21-5,043.53

Finding the Fourth Proportional to 12,942.18, 19,408.21 and 5,043.53

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Solution

The fourth proportional to 12,942.18, 19,408.21 and 5,043.53 is: 7,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.18 : 19,408.21 = 5,043.53 : x
  2. Step 2: Convert to fraction form
    12,942.18/19,408.21 = 5,043.53/x
  3. Step 3: Cross multiply
    12,942.18x = 19,408.21 × 5,043.53
  4. Step 4: Simplify right side
    12,942.18x = 97,885,925.29
  5. Step 5: Solve for x
    x = 97,885,925.29/12,942.18
  6. Step 6: Final answer
    x = 7,563.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.