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Finding the Fourth Proportional to 9,611.40, 14,417.10 and 9,028.20

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Solution

The fourth proportional to 9,611.40, 14,417.10 and 9,028.20 is: 13,542.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,611.40 : 14,417.10 = 9,028.20 : x
  2. Step 2: Convert to fraction form
    9,611.40/14,417.10 = 9,028.20/x
  3. Step 3: Cross multiply
    9,611.40x = 14,417.10 × 9,028.20
  4. Step 4: Simplify right side
    9,611.40x = 130,160,462.22
  5. Step 5: Solve for x
    x = 130,160,462.22/9,611.40
  6. Step 6: Final answer
    x = 13,542.30

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Similar ratio
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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.