Home / 12,127.60-16,735.80-7,935.76

Finding the Fourth Proportional to 12,127.60, 16,735.80 and 7,935.76

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Solution

The fourth proportional to 12,127.60, 16,735.80 and 7,935.76 is: 10,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.60 : 16,735.80 = 7,935.76 : x
  2. Step 2: Convert to fraction form
    12,127.60/16,735.80 = 7,935.76/x
  3. Step 3: Cross multiply
    12,127.60x = 16,735.80 × 7,935.76
  4. Step 4: Simplify right side
    12,127.60x = 132,811,292.21
  5. Step 5: Solve for x
    x = 132,811,292.21/12,127.60
  6. Step 6: Final answer
    x = 10,951.16

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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.