Home / 15,946.88-23,898.40-8,139.28

Finding the Fourth Proportional to 15,946.88, 23,898.40 and 8,139.28

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Solution

The fourth proportional to 15,946.88, 23,898.40 and 8,139.28 is: 12,197.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,946.88 : 23,898.40 = 8,139.28 : x
  2. Step 2: Convert to fraction form
    15,946.88/23,898.40 = 8,139.28/x
  3. Step 3: Cross multiply
    15,946.88x = 23,898.40 × 8,139.28
  4. Step 4: Simplify right side
    15,946.88x = 194,515,769.15
  5. Step 5: Solve for x
    x = 194,515,769.15/15,946.88
  6. Step 6: Final answer
    x = 12,197.73

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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.