Home / 14,665.94-20,240.07-8,378.18

Finding the Fourth Proportional to 14,665.94, 20,240.07 and 8,378.18

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Solution

The fourth proportional to 14,665.94, 20,240.07 and 8,378.18 is: 11,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,665.94 : 20,240.07 = 8,378.18 : x
  2. Step 2: Convert to fraction form
    14,665.94/20,240.07 = 8,378.18/x
  3. Step 3: Cross multiply
    14,665.94x = 20,240.07 × 8,378.18
  4. Step 4: Simplify right side
    14,665.94x = 169,574,949.67
  5. Step 5: Solve for x
    x = 169,574,949.67/14,665.94
  6. Step 6: Final answer
    x = 11,562.50

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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.