Home / 12,285.08-16,956.14-7,807.96

Finding the Fourth Proportional to 12,285.08, 16,956.14 and 7,807.96

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Solution

The fourth proportional to 12,285.08, 16,956.14 and 7,807.96 is: 10,776.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.08 : 16,956.14 = 7,807.96 : x
  2. Step 2: Convert to fraction form
    12,285.08/16,956.14 = 7,807.96/x
  3. Step 3: Cross multiply
    12,285.08x = 16,956.14 × 7,807.96
  4. Step 4: Simplify right side
    12,285.08x = 132,392,845.03
  5. Step 5: Solve for x
    x = 132,392,845.03/12,285.08
  6. Step 6: Final answer
    x = 10,776.72

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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.