Home / 12,310.61-16,989.89-7,276.46

Finding the Fourth Proportional to 12,310.61, 16,989.89 and 7,276.46

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Solution

The fourth proportional to 12,310.61, 16,989.89 and 7,276.46 is: 10,042.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.61 : 16,989.89 = 7,276.46 : x
  2. Step 2: Convert to fraction form
    12,310.61/16,989.89 = 7,276.46/x
  3. Step 3: Cross multiply
    12,310.61x = 16,989.89 × 7,276.46
  4. Step 4: Simplify right side
    12,310.61x = 123,626,133.66
  5. Step 5: Solve for x
    x = 123,626,133.66/12,310.61
  6. Step 6: Final answer
    x = 10,042.25

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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.