Home / 12,285.06-16,953.78-6,979.56

Finding the Fourth Proportional to 12,285.06, 16,953.78 and 6,979.56

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Solution

The fourth proportional to 12,285.06, 16,953.78 and 6,979.56 is: 9,632.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285.06 : 16,953.78 = 6,979.56 : x
  2. Step 2: Convert to fraction form
    12,285.06/16,953.78 = 6,979.56/x
  3. Step 3: Cross multiply
    12,285.06x = 16,953.78 × 6,979.56
  4. Step 4: Simplify right side
    12,285.06x = 118,329,924.74
  5. Step 5: Solve for x
    x = 118,329,924.74/12,285.06
  6. Step 6: Final answer
    x = 9,632.02

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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.