Home / 12,154.51-18,238.94-5,134.07

Finding the Fourth Proportional to 12,154.51, 18,238.94 and 5,134.07

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Solution

The fourth proportional to 12,154.51, 18,238.94 and 5,134.07 is: 7,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,154.51 : 18,238.94 = 5,134.07 : x
  2. Step 2: Convert to fraction form
    12,154.51/18,238.94 = 5,134.07/x
  3. Step 3: Cross multiply
    12,154.51x = 18,238.94 × 5,134.07
  4. Step 4: Simplify right side
    12,154.51x = 93,639,994.69
  5. Step 5: Solve for x
    x = 93,639,994.69/12,154.51
  6. Step 6: Final answer
    x = 7,704.14

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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.