Home / 18,315.84-27,451.81-9,435.40

Finding the Fourth Proportional to 18,315.84, 27,451.81 and 9,435.40

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Solution

The fourth proportional to 18,315.84, 27,451.81 and 9,435.40 is: 14,141.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.84 : 27,451.81 = 9,435.40 : x
  2. Step 2: Convert to fraction form
    18,315.84/27,451.81 = 9,435.40/x
  3. Step 3: Cross multiply
    18,315.84x = 27,451.81 × 9,435.40
  4. Step 4: Simplify right side
    18,315.84x = 259,018,905.66
  5. Step 5: Solve for x
    x = 259,018,905.66/18,315.84
  6. Step 6: Final answer
    x = 14,141.80

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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.