Home / 12,240.80-16,891.69-6,935.63

Finding the Fourth Proportional to 12,240.80, 16,891.69 and 6,935.63

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Solution

The fourth proportional to 12,240.80, 16,891.69 and 6,935.63 is: 9,570.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,240.80 : 16,891.69 = 6,935.63 : x
  2. Step 2: Convert to fraction form
    12,240.80/16,891.69 = 6,935.63/x
  3. Step 3: Cross multiply
    12,240.80x = 16,891.69 × 6,935.63
  4. Step 4: Simplify right side
    12,240.80x = 117,154,511.91
  5. Step 5: Solve for x
    x = 117,154,511.91/12,240.80
  6. Step 6: Final answer
    x = 9,570.82

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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.