Home / 12,747.02-17,582.57-7,712.82

Finding the Fourth Proportional to 12,747.02, 17,582.57 and 7,712.82

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Solution

The fourth proportional to 12,747.02, 17,582.57 and 7,712.82 is: 10,638.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.02 : 17,582.57 = 7,712.82 : x
  2. Step 2: Convert to fraction form
    12,747.02/17,582.57 = 7,712.82/x
  3. Step 3: Cross multiply
    12,747.02x = 17,582.57 × 7,712.82
  4. Step 4: Simplify right side
    12,747.02x = 135,611,187.91
  5. Step 5: Solve for x
    x = 135,611,187.91/12,747.02
  6. Step 6: Final answer
    x = 10,638.66

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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.