Home / 7,989.78-11,026.56-4,633.50

Finding the Fourth Proportional to 7,989.78, 11,026.56 and 4,633.50

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Solution

The fourth proportional to 7,989.78, 11,026.56 and 4,633.50 is: 6,394.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.78 : 11,026.56 = 4,633.50 : x
  2. Step 2: Convert to fraction form
    7,989.78/11,026.56 = 4,633.50/x
  3. Step 3: Cross multiply
    7,989.78x = 11,026.56 × 4,633.50
  4. Step 4: Simplify right side
    7,989.78x = 51,091,565.76
  5. Step 5: Solve for x
    x = 51,091,565.76/7,989.78
  6. Step 6: Final answer
    x = 6,394.61

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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.