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Finding the Fourth Proportional to 8,369.76, 12,547.46 and 3,436.32

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Solution

The fourth proportional to 8,369.76, 12,547.46 and 3,436.32 is: 5,151.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.76 : 12,547.46 = 3,436.32 : x
  2. Step 2: Convert to fraction form
    8,369.76/12,547.46 = 3,436.32/x
  3. Step 3: Cross multiply
    8,369.76x = 12,547.46 × 3,436.32
  4. Step 4: Simplify right side
    8,369.76x = 43,117,087.75
  5. Step 5: Solve for x
    x = 43,117,087.75/8,369.76
  6. Step 6: Final answer
    x = 5,151.53

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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.