Home / 14,136.20-21,204.30-10,219.40

Finding the Fourth Proportional to 14,136.20, 21,204.30 and 10,219.40

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Solution

The fourth proportional to 14,136.20, 21,204.30 and 10,219.40 is: 15,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.20 : 21,204.30 = 10,219.40 : x
  2. Step 2: Convert to fraction form
    14,136.20/21,204.30 = 10,219.40/x
  3. Step 3: Cross multiply
    14,136.20x = 21,204.30 × 10,219.40
  4. Step 4: Simplify right side
    14,136.20x = 216,695,223.42
  5. Step 5: Solve for x
    x = 216,695,223.42/14,136.20
  6. Step 6: Final answer
    x = 15,329.10

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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.