Home / 19,143.99-28,715.76-6,663.96

Finding the Fourth Proportional to 19,143.99, 28,715.76 and 6,663.96

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Solution

The fourth proportional to 19,143.99, 28,715.76 and 6,663.96 is: 9,995.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.99 : 28,715.76 = 6,663.96 : x
  2. Step 2: Convert to fraction form
    19,143.99/28,715.76 = 6,663.96/x
  3. Step 3: Cross multiply
    19,143.99x = 28,715.76 × 6,663.96
  4. Step 4: Simplify right side
    19,143.99x = 191,360,676.01
  5. Step 5: Solve for x
    x = 191,360,676.01/19,143.99
  6. Step 6: Final answer
    x = 9,995.86

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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.