Home / 12,108.35-16,700.24-10,613.68

Finding the Fourth Proportional to 12,108.35, 16,700.24 and 10,613.68

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Solution

The fourth proportional to 12,108.35, 16,700.24 and 10,613.68 is: 14,638.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108.35 : 16,700.24 = 10,613.68 : x
  2. Step 2: Convert to fraction form
    12,108.35/16,700.24 = 10,613.68/x
  3. Step 3: Cross multiply
    12,108.35x = 16,700.24 × 10,613.68
  4. Step 4: Simplify right side
    12,108.35x = 177,250,988.07
  5. Step 5: Solve for x
    x = 177,250,988.07/12,108.35
  6. Step 6: Final answer
    x = 14,638.74

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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.