Home / 12,128.77-16,737.33-6,823.88

Finding the Fourth Proportional to 12,128.77, 16,737.33 and 6,823.88

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Solution

The fourth proportional to 12,128.77, 16,737.33 and 6,823.88 is: 9,416.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128.77 : 16,737.33 = 6,823.88 : x
  2. Step 2: Convert to fraction form
    12,128.77/16,737.33 = 6,823.88/x
  3. Step 3: Cross multiply
    12,128.77x = 16,737.33 × 6,823.88
  4. Step 4: Simplify right side
    12,128.77x = 114,213,536.11
  5. Step 5: Solve for x
    x = 114,213,536.11/12,128.77
  6. Step 6: Final answer
    x = 9,416.74

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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.