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Finding the Fourth Proportional to 8,653.07, 12,981.59 and 2,729.94

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Solution

The fourth proportional to 8,653.07, 12,981.59 and 2,729.94 is: 4,095.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.07 : 12,981.59 = 2,729.94 : x
  2. Step 2: Convert to fraction form
    8,653.07/12,981.59 = 2,729.94/x
  3. Step 3: Cross multiply
    8,653.07x = 12,981.59 × 2,729.94
  4. Step 4: Simplify right side
    8,653.07x = 35,438,909.71
  5. Step 5: Solve for x
    x = 35,438,909.71/8,653.07
  6. Step 6: Final answer
    x = 4,095.53

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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.