Home / 14,038.17-19,372.39-8,069.78

Finding the Fourth Proportional to 14,038.17, 19,372.39 and 8,069.78

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Solution

The fourth proportional to 14,038.17, 19,372.39 and 8,069.78 is: 11,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.17 : 19,372.39 = 8,069.78 : x
  2. Step 2: Convert to fraction form
    14,038.17/19,372.39 = 8,069.78/x
  3. Step 3: Cross multiply
    14,038.17x = 19,372.39 × 8,069.78
  4. Step 4: Simplify right side
    14,038.17x = 156,330,957.67
  5. Step 5: Solve for x
    x = 156,330,957.67/14,038.17
  6. Step 6: Final answer
    x = 11,136.14

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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.