Home / 14,386.80-21,583.28-8,149.76

Finding the Fourth Proportional to 14,386.80, 21,583.28 and 8,149.76

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Solution

The fourth proportional to 14,386.80, 21,583.28 and 8,149.76 is: 12,226.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,386.80 : 21,583.28 = 8,149.76 : x
  2. Step 2: Convert to fraction form
    14,386.80/21,583.28 = 8,149.76/x
  3. Step 3: Cross multiply
    14,386.80x = 21,583.28 × 8,149.76
  4. Step 4: Simplify right side
    14,386.80x = 175,898,552.01
  5. Step 5: Solve for x
    x = 175,898,552.01/14,386.80
  6. Step 6: Final answer
    x = 12,226.38

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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.