Home / 12,316.68-18,475.14-4,923

Finding the Fourth Proportional to 12,316.68, 18,475.14 and 4,923

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Solution

The fourth proportional to 12,316.68, 18,475.14 and 4,923 is: 7,384.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.68 : 18,475.14 = 4,923 : x
  2. Step 2: Convert to fraction form
    12,316.68/18,475.14 = 4,923/x
  3. Step 3: Cross multiply
    12,316.68x = 18,475.14 × 4,923
  4. Step 4: Simplify right side
    12,316.68x = 90,953,114.22
  5. Step 5: Solve for x
    x = 90,953,114.22/12,316.68
  6. Step 6: Final answer
    x = 7,384.55

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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.