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Finding the Fourth Proportional to 17,143.50, 25,705.53 and 7,136.70

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Solution

The fourth proportional to 17,143.50, 25,705.53 and 7,136.70 is: 10,701.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,143.50 : 25,705.53 = 7,136.70 : x
  2. Step 2: Convert to fraction form
    17,143.50/25,705.53 = 7,136.70/x
  3. Step 3: Cross multiply
    17,143.50x = 25,705.53 × 7,136.70
  4. Step 4: Simplify right side
    17,143.50x = 183,452,655.95
  5. Step 5: Solve for x
    x = 183,452,655.95/17,143.50
  6. Step 6: Final answer
    x = 10,701.00

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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.