Home / 9,165.40-13,748.10-6,395.20

Finding the Fourth Proportional to 9,165.40, 13,748.10 and 6,395.20

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Solution

The fourth proportional to 9,165.40, 13,748.10 and 6,395.20 is: 9,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.40 : 13,748.10 = 6,395.20 : x
  2. Step 2: Convert to fraction form
    9,165.40/13,748.10 = 6,395.20/x
  3. Step 3: Cross multiply
    9,165.40x = 13,748.10 × 6,395.20
  4. Step 4: Simplify right side
    9,165.40x = 87,921,849.12
  5. Step 5: Solve for x
    x = 87,921,849.12/9,165.40
  6. Step 6: Final answer
    x = 9,592.80

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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.