Home / 14,953.82-20,636.28-8,239.46

Finding the Fourth Proportional to 14,953.82, 20,636.28 and 8,239.46

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Solution

The fourth proportional to 14,953.82, 20,636.28 and 8,239.46 is: 11,370.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,953.82 : 20,636.28 = 8,239.46 : x
  2. Step 2: Convert to fraction form
    14,953.82/20,636.28 = 8,239.46/x
  3. Step 3: Cross multiply
    14,953.82x = 20,636.28 × 8,239.46
  4. Step 4: Simplify right side
    14,953.82x = 170,031,700.43
  5. Step 5: Solve for x
    x = 170,031,700.43/14,953.82
  6. Step 6: Final answer
    x = 11,370.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.