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Finding the Fourth Proportional to 14,340.40, 21,510.60 and 10,841.20

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Solution

The fourth proportional to 14,340.40, 21,510.60 and 10,841.20 is: 16,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,340.40 : 21,510.60 = 10,841.20 : x
  2. Step 2: Convert to fraction form
    14,340.40/21,510.60 = 10,841.20/x
  3. Step 3: Cross multiply
    14,340.40x = 21,510.60 × 10,841.20
  4. Step 4: Simplify right side
    14,340.40x = 233,200,716.72
  5. Step 5: Solve for x
    x = 233,200,716.72/14,340.40
  6. Step 6: Final answer
    x = 16,261.80

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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.