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Finding the Fourth Proportional to 8,866.94, 13,278.50 and 6,521.45

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Solution

The fourth proportional to 8,866.94, 13,278.50 and 6,521.45 is: 9,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,866.94 : 13,278.50 = 6,521.45 : x
  2. Step 2: Convert to fraction form
    8,866.94/13,278.50 = 6,521.45/x
  3. Step 3: Cross multiply
    8,866.94x = 13,278.50 × 6,521.45
  4. Step 4: Simplify right side
    8,866.94x = 86,595,041.22
  5. Step 5: Solve for x
    x = 86,595,041.22/8,866.94
  6. Step 6: Final answer
    x = 9,766.06

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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.