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Finding the Fourth Proportional to 8,544.66, 12,785.40 and 7,295.64

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Solution

The fourth proportional to 8,544.66, 12,785.40 and 7,295.64 is: 10,916.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,544.66 : 12,785.40 = 7,295.64 : x
  2. Step 2: Convert to fraction form
    8,544.66/12,785.40 = 7,295.64/x
  3. Step 3: Cross multiply
    8,544.66x = 12,785.40 × 7,295.64
  4. Step 4: Simplify right side
    8,544.66x = 93,277,675.66
  5. Step 5: Solve for x
    x = 93,277,675.66/8,544.66
  6. Step 6: Final answer
    x = 10,916.49

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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.