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Finding the Fourth Proportional to 8,397.45, 12,595.95 and 2,157.48

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Solution

The fourth proportional to 8,397.45, 12,595.95 and 2,157.48 is: 3,236.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.45 : 12,595.95 = 2,157.48 : x
  2. Step 2: Convert to fraction form
    8,397.45/12,595.95 = 2,157.48/x
  3. Step 3: Cross multiply
    8,397.45x = 12,595.95 × 2,157.48
  4. Step 4: Simplify right side
    8,397.45x = 27,175,510.21
  5. Step 5: Solve for x
    x = 27,175,510.21/8,397.45
  6. Step 6: Final answer
    x = 3,236.16

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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.