Home / 8,889.30-12,263.43-5,111.61

Finding the Fourth Proportional to 8,889.30, 12,263.43 and 5,111.61

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Solution

The fourth proportional to 8,889.30, 12,263.43 and 5,111.61 is: 7,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889.30 : 12,263.43 = 5,111.61 : x
  2. Step 2: Convert to fraction form
    8,889.30/12,263.43 = 5,111.61/x
  3. Step 3: Cross multiply
    8,889.30x = 12,263.43 × 5,111.61
  4. Step 4: Simplify right side
    8,889.30x = 62,685,871.42
  5. Step 5: Solve for x
    x = 62,685,871.42/8,889.30
  6. Step 6: Final answer
    x = 7,051.83

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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.