Home / 9,360.76-12,918-5,169.04

Finding the Fourth Proportional to 9,360.76, 12,918 and 5,169.04

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Solution

The fourth proportional to 9,360.76, 12,918 and 5,169.04 is: 7,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.76 : 12,918 = 5,169.04 : x
  2. Step 2: Convert to fraction form
    9,360.76/12,918 = 5,169.04/x
  3. Step 3: Cross multiply
    9,360.76x = 12,918 × 5,169.04
  4. Step 4: Simplify right side
    9,360.76x = 66,773,658.72
  5. Step 5: Solve for x
    x = 66,773,658.72/9,360.76
  6. Step 6: Final answer
    x = 7,133.36

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1.5x scale

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.