Home / 10,531.21-14,535.35-7,182.02

Finding the Fourth Proportional to 10,531.21, 14,535.35 and 7,182.02

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Solution

The fourth proportional to 10,531.21, 14,535.35 and 7,182.02 is: 9,912.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.21 : 14,535.35 = 7,182.02 : x
  2. Step 2: Convert to fraction form
    10,531.21/14,535.35 = 7,182.02/x
  3. Step 3: Cross multiply
    10,531.21x = 14,535.35 × 7,182.02
  4. Step 4: Simplify right side
    10,531.21x = 104,393,174.41
  5. Step 5: Solve for x
    x = 104,393,174.41/10,531.21
  6. Step 6: Final answer
    x = 9,912.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.