Home / 8,133.24-12,128.82-7,237.29

Finding the Fourth Proportional to 8,133.24, 12,128.82 and 7,237.29

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Solution

The fourth proportional to 8,133.24, 12,128.82 and 7,237.29 is: 10,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.24 : 12,128.82 = 7,237.29 : x
  2. Step 2: Convert to fraction form
    8,133.24/12,128.82 = 7,237.29/x
  3. Step 3: Cross multiply
    8,133.24x = 12,128.82 × 7,237.29
  4. Step 4: Simplify right side
    8,133.24x = 87,779,787.70
  5. Step 5: Solve for x
    x = 87,779,787.70/8,133.24
  6. Step 6: Final answer
    x = 10,792.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.