Home / 14,521.38-20,039.18-8,553.30

Finding the Fourth Proportional to 14,521.38, 20,039.18 and 8,553.30

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Solution

The fourth proportional to 14,521.38, 20,039.18 and 8,553.30 is: 11,803.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521.38 : 20,039.18 = 8,553.30 : x
  2. Step 2: Convert to fraction form
    14,521.38/20,039.18 = 8,553.30/x
  3. Step 3: Cross multiply
    14,521.38x = 20,039.18 × 8,553.30
  4. Step 4: Simplify right side
    14,521.38x = 171,401,075.53
  5. Step 5: Solve for x
    x = 171,401,075.53/14,521.38
  6. Step 6: Final answer
    x = 11,803.36

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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.