Home / 9,360.90-12,919.23-5,381.64

Finding the Fourth Proportional to 9,360.90, 12,919.23 and 5,381.64

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Solution

The fourth proportional to 9,360.90, 12,919.23 and 5,381.64 is: 7,427.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360.90 : 12,919.23 = 5,381.64 : x
  2. Step 2: Convert to fraction form
    9,360.90/12,919.23 = 5,381.64/x
  3. Step 3: Cross multiply
    9,360.90x = 12,919.23 × 5,381.64
  4. Step 4: Simplify right side
    9,360.90x = 69,526,644.94
  5. Step 5: Solve for x
    x = 69,526,644.94/9,360.90
  6. Step 6: Final answer
    x = 7,427.35

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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.