Home / 10,531.12-15,801.90-5,851.12

Finding the Fourth Proportional to 10,531.12, 15,801.90 and 5,851.12

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Solution

The fourth proportional to 10,531.12, 15,801.90 and 5,851.12 is: 8,779.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.12 : 15,801.90 = 5,851.12 : x
  2. Step 2: Convert to fraction form
    10,531.12/15,801.90 = 5,851.12/x
  3. Step 3: Cross multiply
    10,531.12x = 15,801.90 × 5,851.12
  4. Step 4: Simplify right side
    10,531.12x = 92,458,813.13
  5. Step 5: Solve for x
    x = 92,458,813.13/10,531.12
  6. Step 6: Final answer
    x = 8,779.58

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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.