Home / 14,817.72-20,442.62-9,142.58

Finding the Fourth Proportional to 14,817.72, 20,442.62 and 9,142.58

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Solution

The fourth proportional to 14,817.72, 20,442.62 and 9,142.58 is: 12,613.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,817.72 : 20,442.62 = 9,142.58 : x
  2. Step 2: Convert to fraction form
    14,817.72/20,442.62 = 9,142.58/x
  3. Step 3: Cross multiply
    14,817.72x = 20,442.62 × 9,142.58
  4. Step 4: Simplify right side
    14,817.72x = 186,898,196.31
  5. Step 5: Solve for x
    x = 186,898,196.31/14,817.72
  6. Step 6: Final answer
    x = 12,613.16

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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.