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Finding the Fourth Proportional to 8,932.65, 13,398.98 and 7,485.45

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Solution

The fourth proportional to 8,932.65, 13,398.98 and 7,485.45 is: 11,228.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.65 : 13,398.98 = 7,485.45 : x
  2. Step 2: Convert to fraction form
    8,932.65/13,398.98 = 7,485.45/x
  3. Step 3: Cross multiply
    8,932.65x = 13,398.98 × 7,485.45
  4. Step 4: Simplify right side
    8,932.65x = 100,297,357.41
  5. Step 5: Solve for x
    x = 100,297,357.41/8,932.65
  6. Step 6: Final answer
    x = 11,228.18

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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.