Home / 16,980.76-25,423.66-12,807.70

Finding the Fourth Proportional to 16,980.76, 25,423.66 and 12,807.70

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Solution

The fourth proportional to 16,980.76, 25,423.66 and 12,807.70 is: 19,175.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,980.76 : 25,423.66 = 12,807.70 : x
  2. Step 2: Convert to fraction form
    16,980.76/25,423.66 = 12,807.70/x
  3. Step 3: Cross multiply
    16,980.76x = 25,423.66 × 12,807.70
  4. Step 4: Simplify right side
    16,980.76x = 325,618,610.18
  5. Step 5: Solve for x
    x = 325,618,610.18/16,980.76
  6. Step 6: Final answer
    x = 19,175.74

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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.