Home / 12,419.18-18,628.92-4,924.58

Finding the Fourth Proportional to 12,419.18, 18,628.92 and 4,924.58

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Solution

The fourth proportional to 12,419.18, 18,628.92 and 4,924.58 is: 7,386.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,419.18 : 18,628.92 = 4,924.58 : x
  2. Step 2: Convert to fraction form
    12,419.18/18,628.92 = 4,924.58/x
  3. Step 3: Cross multiply
    12,419.18x = 18,628.92 × 4,924.58
  4. Step 4: Simplify right side
    12,419.18x = 91,739,606.85
  5. Step 5: Solve for x
    x = 91,739,606.85/12,419.18
  6. Step 6: Final answer
    x = 7,386.93

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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.