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Finding the Fourth Proportional to 8,124.30, 11,211.42 and 4,587.42

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Solution

The fourth proportional to 8,124.30, 11,211.42 and 4,587.42 is: 6,330.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,124.30 : 11,211.42 = 4,587.42 : x
  2. Step 2: Convert to fraction form
    8,124.30/11,211.42 = 4,587.42/x
  3. Step 3: Cross multiply
    8,124.30x = 11,211.42 × 4,587.42
  4. Step 4: Simplify right side
    8,124.30x = 51,431,492.34
  5. Step 5: Solve for x
    x = 51,431,492.34/8,124.30
  6. Step 6: Final answer
    x = 6,330.58

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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.