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Finding the Fourth Proportional to 8,627.96, 11,925.42 and 7,254.20

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Solution

The fourth proportional to 8,627.96, 11,925.42 and 7,254.20 is: 10,026.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.96 : 11,925.42 = 7,254.20 : x
  2. Step 2: Convert to fraction form
    8,627.96/11,925.42 = 7,254.20/x
  3. Step 3: Cross multiply
    8,627.96x = 11,925.42 × 7,254.20
  4. Step 4: Simplify right side
    8,627.96x = 86,509,381.76
  5. Step 5: Solve for x
    x = 86,509,381.76/8,627.96
  6. Step 6: Final answer
    x = 10,026.63

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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.