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Finding the Fourth Proportional to 10,971, 16,458.21 and 3,573.72

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Solution

The fourth proportional to 10,971, 16,458.21 and 3,573.72 is: 5,361.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,971 : 16,458.21 = 3,573.72 : x
  2. Step 2: Convert to fraction form
    10,971/16,458.21 = 3,573.72/x
  3. Step 3: Cross multiply
    10,971x = 16,458.21 × 3,573.72
  4. Step 4: Simplify right side
    10,971x = 58,817,034.24
  5. Step 5: Solve for x
    x = 58,817,034.24/10,971
  6. Step 6: Final answer
    x = 5,361.14

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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.