Home / 11,139.21-16,700.88-5,588.55

Finding the Fourth Proportional to 11,139.21, 16,700.88 and 5,588.55

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Solution

The fourth proportional to 11,139.21, 16,700.88 and 5,588.55 is: 8,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.21 : 16,700.88 = 5,588.55 : x
  2. Step 2: Convert to fraction form
    11,139.21/16,700.88 = 5,588.55/x
  3. Step 3: Cross multiply
    11,139.21x = 16,700.88 × 5,588.55
  4. Step 4: Simplify right side
    11,139.21x = 93,333,702.92
  5. Step 5: Solve for x
    x = 93,333,702.92/11,139.21
  6. Step 6: Final answer
    x = 8,378.84

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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.