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Finding the Fourth Proportional to 11,807.55, 17,714.25 and 3,487.55

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Solution

The fourth proportional to 11,807.55, 17,714.25 and 3,487.55 is: 5,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,807.55 : 17,714.25 = 3,487.55 : x
  2. Step 2: Convert to fraction form
    11,807.55/17,714.25 = 3,487.55/x
  3. Step 3: Cross multiply
    11,807.55x = 17,714.25 × 3,487.55
  4. Step 4: Simplify right side
    11,807.55x = 61,779,244.02
  5. Step 5: Solve for x
    x = 61,779,244.02/11,807.55
  6. Step 6: Final answer
    x = 5,232.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.