Home / 12,065.55-18,091-5,400.81

Finding the Fourth Proportional to 12,065.55, 18,091 and 5,400.81

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Solution

The fourth proportional to 12,065.55, 18,091 and 5,400.81 is: 8,097.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,065.55 : 18,091 = 5,400.81 : x
  2. Step 2: Convert to fraction form
    12,065.55/18,091 = 5,400.81/x
  3. Step 3: Cross multiply
    12,065.55x = 18,091 × 5,400.81
  4. Step 4: Simplify right side
    12,065.55x = 97,706,053.71
  5. Step 5: Solve for x
    x = 97,706,053.71/12,065.55
  6. Step 6: Final answer
    x = 8,097.94

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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.