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Finding the Fourth Proportional to 11,510.70, 17,266.05 and 10,271.40

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Solution

The fourth proportional to 11,510.70, 17,266.05 and 10,271.40 is: 15,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.70 : 17,266.05 = 10,271.40 : x
  2. Step 2: Convert to fraction form
    11,510.70/17,266.05 = 10,271.40/x
  3. Step 3: Cross multiply
    11,510.70x = 17,266.05 × 10,271.40
  4. Step 4: Simplify right side
    11,510.70x = 177,346,505.97
  5. Step 5: Solve for x
    x = 177,346,505.97/11,510.70
  6. Step 6: Final answer
    x = 15,407.10

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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.