Home / 19,165.10-28,754.46-7,319.75

Finding the Fourth Proportional to 19,165.10, 28,754.46 and 7,319.75

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Solution

The fourth proportional to 19,165.10, 28,754.46 and 7,319.75 is: 10,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.10 : 28,754.46 = 7,319.75 : x
  2. Step 2: Convert to fraction form
    19,165.10/28,754.46 = 7,319.75/x
  3. Step 3: Cross multiply
    19,165.10x = 28,754.46 × 7,319.75
  4. Step 4: Simplify right side
    19,165.10x = 210,475,314.81
  5. Step 5: Solve for x
    x = 210,475,314.81/19,165.10
  6. Step 6: Final answer
    x = 10,982.22

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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.