Home / 8,089.34-12,128.25-6,531.26

Finding the Fourth Proportional to 8,089.34, 12,128.25 and 6,531.26

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Solution

The fourth proportional to 8,089.34, 12,128.25 and 6,531.26 is: 9,792.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,089.34 : 12,128.25 = 6,531.26 : x
  2. Step 2: Convert to fraction form
    8,089.34/12,128.25 = 6,531.26/x
  3. Step 3: Cross multiply
    8,089.34x = 12,128.25 × 6,531.26
  4. Step 4: Simplify right side
    8,089.34x = 79,212,754.10
  5. Step 5: Solve for x
    x = 79,212,754.10/8,089.34
  6. Step 6: Final answer
    x = 9,792.24

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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.