Home / 14,822.87-20,456.06-8,450.40

Finding the Fourth Proportional to 14,822.87, 20,456.06 and 8,450.40

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Solution

The fourth proportional to 14,822.87, 20,456.06 and 8,450.40 is: 11,661.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,822.87 : 20,456.06 = 8,450.40 : x
  2. Step 2: Convert to fraction form
    14,822.87/20,456.06 = 8,450.40/x
  3. Step 3: Cross multiply
    14,822.87x = 20,456.06 × 8,450.40
  4. Step 4: Simplify right side
    14,822.87x = 172,861,931.71
  5. Step 5: Solve for x
    x = 172,861,931.71/14,822.87
  6. Step 6: Final answer
    x = 11,661.84

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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.