Home / 10,079.21-15,123.93-4,531.43

Finding the Fourth Proportional to 10,079.21, 15,123.93 and 4,531.43

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Solution

The fourth proportional to 10,079.21, 15,123.93 and 4,531.43 is: 6,799.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.21 : 15,123.93 = 4,531.43 : x
  2. Step 2: Convert to fraction form
    10,079.21/15,123.93 = 4,531.43/x
  3. Step 3: Cross multiply
    10,079.21x = 15,123.93 × 4,531.43
  4. Step 4: Simplify right side
    10,079.21x = 68,533,030.12
  5. Step 5: Solve for x
    x = 68,533,030.12/10,079.21
  6. Step 6: Final answer
    x = 6,799.44

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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.