Home / 16,807.47-25,211.21-5,120.70

Finding the Fourth Proportional to 16,807.47, 25,211.21 and 5,120.70

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Solution

The fourth proportional to 16,807.47, 25,211.21 and 5,120.70 is: 7,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.47 : 25,211.21 = 5,120.70 : x
  2. Step 2: Convert to fraction form
    16,807.47/25,211.21 = 5,120.70/x
  3. Step 3: Cross multiply
    16,807.47x = 25,211.21 × 5,120.70
  4. Step 4: Simplify right side
    16,807.47x = 129,099,043.05
  5. Step 5: Solve for x
    x = 129,099,043.05/16,807.47
  6. Step 6: Final answer
    x = 7,681.05

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Similar ratio
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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.