Home / 8,465.88-11,686.90-5,637.96

Finding the Fourth Proportional to 8,465.88, 11,686.90 and 5,637.96

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Solution

The fourth proportional to 8,465.88, 11,686.90 and 5,637.96 is: 7,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.88 : 11,686.90 = 5,637.96 : x
  2. Step 2: Convert to fraction form
    8,465.88/11,686.90 = 5,637.96/x
  3. Step 3: Cross multiply
    8,465.88x = 11,686.90 × 5,637.96
  4. Step 4: Simplify right side
    8,465.88x = 65,890,274.72
  5. Step 5: Solve for x
    x = 65,890,274.72/8,465.88
  6. Step 6: Final answer
    x = 7,783.04

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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.