Home / 12,356.91-18,532.58-5,687.00

Finding the Fourth Proportional to 12,356.91, 18,532.58 and 5,687.00

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Solution

The fourth proportional to 12,356.91, 18,532.58 and 5,687.00 is: 8,529.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,356.91 : 18,532.58 = 5,687.00 : x
  2. Step 2: Convert to fraction form
    12,356.91/18,532.58 = 5,687.00/x
  3. Step 3: Cross multiply
    12,356.91x = 18,532.58 × 5,687.00
  4. Step 4: Simplify right side
    12,356.91x = 105,394,800.36
  5. Step 5: Solve for x
    x = 105,394,800.36/12,356.91
  6. Step 6: Final answer
    x = 8,529.22

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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.