Home / 19,311.40-28,967.10-6,164.20

Finding the Fourth Proportional to 19,311.40, 28,967.10 and 6,164.20

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Solution

The fourth proportional to 19,311.40, 28,967.10 and 6,164.20 is: 9,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.40 : 28,967.10 = 6,164.20 : x
  2. Step 2: Convert to fraction form
    19,311.40/28,967.10 = 6,164.20/x
  3. Step 3: Cross multiply
    19,311.40x = 28,967.10 × 6,164.20
  4. Step 4: Simplify right side
    19,311.40x = 178,558,997.82
  5. Step 5: Solve for x
    x = 178,558,997.82/19,311.40
  6. Step 6: Final answer
    x = 9,246.30

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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.