Home / 11,785.17-16,263.27-6,407.49

Finding the Fourth Proportional to 11,785.17, 16,263.27 and 6,407.49

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Solution

The fourth proportional to 11,785.17, 16,263.27 and 6,407.49 is: 8,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.17 : 16,263.27 = 6,407.49 : x
  2. Step 2: Convert to fraction form
    11,785.17/16,263.27 = 6,407.49/x
  3. Step 3: Cross multiply
    11,785.17x = 16,263.27 × 6,407.49
  4. Step 4: Simplify right side
    11,785.17x = 104,206,739.89
  5. Step 5: Solve for x
    x = 104,206,739.89/11,785.17
  6. Step 6: Final answer
    x = 8,842.19

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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.