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Finding the Fourth Proportional to 8,953.51, 13,340.30 and 8,450.50

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Solution

The fourth proportional to 8,953.51, 13,340.30 and 8,450.50 is: 12,590.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.51 : 13,340.30 = 8,450.50 : x
  2. Step 2: Convert to fraction form
    8,953.51/13,340.30 = 8,450.50/x
  3. Step 3: Cross multiply
    8,953.51x = 13,340.30 × 8,450.50
  4. Step 4: Simplify right side
    8,953.51x = 112,732,205.15
  5. Step 5: Solve for x
    x = 112,732,205.15/8,953.51
  6. Step 6: Final answer
    x = 12,590.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.