Home / 14,521.68-21,783.81-5,636.80

Finding the Fourth Proportional to 14,521.68, 21,783.81 and 5,636.80

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Solution

The fourth proportional to 14,521.68, 21,783.81 and 5,636.80 is: 8,455.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.68 : 21,783.81 = 5,636.80 : x
  2. Step 2: Convert to fraction form
    14,521.68/21,783.81 = 5,636.80/x
  3. Step 3: Cross multiply
    14,521.68x = 21,783.81 × 5,636.80
  4. Step 4: Simplify right side
    14,521.68x = 122,790,871.29
  5. Step 5: Solve for x
    x = 122,790,871.29/14,521.68
  6. Step 6: Final answer
    x = 8,455.70

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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.