Home / 11,350.72-15,664.08-6,315.04

Finding the Fourth Proportional to 11,350.72, 15,664.08 and 6,315.04

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Solution

The fourth proportional to 11,350.72, 15,664.08 and 6,315.04 is: 8,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,350.72 : 15,664.08 = 6,315.04 : x
  2. Step 2: Convert to fraction form
    11,350.72/15,664.08 = 6,315.04/x
  3. Step 3: Cross multiply
    11,350.72x = 15,664.08 × 6,315.04
  4. Step 4: Simplify right side
    11,350.72x = 98,919,291.76
  5. Step 5: Solve for x
    x = 98,919,291.76/11,350.72
  6. Step 6: Final answer
    x = 8,714.80

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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.