Home / 18,045.74-24,880.28-11,661.50

Finding the Fourth Proportional to 18,045.74, 24,880.28 and 11,661.50

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Solution

The fourth proportional to 18,045.74, 24,880.28 and 11,661.50 is: 16,078.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.74 : 24,880.28 = 11,661.50 : x
  2. Step 2: Convert to fraction form
    18,045.74/24,880.28 = 11,661.50/x
  3. Step 3: Cross multiply
    18,045.74x = 24,880.28 × 11,661.50
  4. Step 4: Simplify right side
    18,045.74x = 290,141,385.22
  5. Step 5: Solve for x
    x = 290,141,385.22/18,045.74
  6. Step 6: Final answer
    x = 16,078.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.