Home / 12,933.90-17,855.58-8,707.19

Finding the Fourth Proportional to 12,933.90, 17,855.58 and 8,707.19

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Solution

The fourth proportional to 12,933.90, 17,855.58 and 8,707.19 is: 12,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,933.90 : 17,855.58 = 8,707.19 : x
  2. Step 2: Convert to fraction form
    12,933.90/17,855.58 = 8,707.19/x
  3. Step 3: Cross multiply
    12,933.90x = 17,855.58 × 8,707.19
  4. Step 4: Simplify right side
    12,933.90x = 155,471,838.34
  5. Step 5: Solve for x
    x = 155,471,838.34/12,933.90
  6. Step 6: Final answer
    x = 12,020.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.