Home / 18,702.45-28,053.78-5,554.92

Finding the Fourth Proportional to 18,702.45, 28,053.78 and 5,554.92

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Solution

The fourth proportional to 18,702.45, 28,053.78 and 5,554.92 is: 8,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,702.45 : 28,053.78 = 5,554.92 : x
  2. Step 2: Convert to fraction form
    18,702.45/28,053.78 = 5,554.92/x
  3. Step 3: Cross multiply
    18,702.45x = 28,053.78 × 5,554.92
  4. Step 4: Simplify right side
    18,702.45x = 155,836,503.60
  5. Step 5: Solve for x
    x = 155,836,503.60/18,702.45
  6. Step 6: Final answer
    x = 8,332.41

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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.