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Finding the Fourth Proportional to 8,657.16, 12,912.83 and 7,254.24

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Solution

The fourth proportional to 8,657.16, 12,912.83 and 7,254.24 is: 10,820.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,657.16 : 12,912.83 = 7,254.24 : x
  2. Step 2: Convert to fraction form
    8,657.16/12,912.83 = 7,254.24/x
  3. Step 3: Cross multiply
    8,657.16x = 12,912.83 × 7,254.24
  4. Step 4: Simplify right side
    8,657.16x = 93,672,731.63
  5. Step 5: Solve for x
    x = 93,672,731.63/8,657.16
  6. Step 6: Final answer
    x = 10,820.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.