Home / 6,240.70-9,351.45-5,415.10

Finding the Fourth Proportional to 6,240.70, 9,351.45 and 5,415.10

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Solution

The fourth proportional to 6,240.70, 9,351.45 and 5,415.10 is: 8,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,240.70 : 9,351.45 = 5,415.10 : x
  2. Step 2: Convert to fraction form
    6,240.70/9,351.45 = 5,415.10/x
  3. Step 3: Cross multiply
    6,240.70x = 9,351.45 × 5,415.10
  4. Step 4: Simplify right side
    6,240.70x = 50,639,036.90
  5. Step 5: Solve for x
    x = 50,639,036.90/6,240.70
  6. Step 6: Final answer
    x = 8,114.32

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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.