Home / 10,305.16-14,221.12-5,828.81

Finding the Fourth Proportional to 10,305.16, 14,221.12 and 5,828.81

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Solution

The fourth proportional to 10,305.16, 14,221.12 and 5,828.81 is: 8,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.16 : 14,221.12 = 5,828.81 : x
  2. Step 2: Convert to fraction form
    10,305.16/14,221.12 = 5,828.81/x
  3. Step 3: Cross multiply
    10,305.16x = 14,221.12 × 5,828.81
  4. Step 4: Simplify right side
    10,305.16x = 82,892,209.67
  5. Step 5: Solve for x
    x = 82,892,209.67/10,305.16
  6. Step 6: Final answer
    x = 8,043.76

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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.