Home / 13,703.46-18,923.84-12,957.13

Finding the Fourth Proportional to 13,703.46, 18,923.84 and 12,957.13

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Solution

The fourth proportional to 13,703.46, 18,923.84 and 12,957.13 is: 17,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.46 : 18,923.84 = 12,957.13 : x
  2. Step 2: Convert to fraction form
    13,703.46/18,923.84 = 12,957.13/x
  3. Step 3: Cross multiply
    13,703.46x = 18,923.84 × 12,957.13
  4. Step 4: Simplify right side
    13,703.46x = 245,198,654.98
  5. Step 5: Solve for x
    x = 245,198,654.98/13,703.46
  6. Step 6: Final answer
    x = 17,893.19

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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.