Home / 7,025.40-10,538.10-6,490.80

Finding the Fourth Proportional to 7,025.40, 10,538.10 and 6,490.80

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Solution

The fourth proportional to 7,025.40, 10,538.10 and 6,490.80 is: 9,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,025.40 : 10,538.10 = 6,490.80 : x
  2. Step 2: Convert to fraction form
    7,025.40/10,538.10 = 6,490.80/x
  3. Step 3: Cross multiply
    7,025.40x = 10,538.10 × 6,490.80
  4. Step 4: Simplify right side
    7,025.40x = 68,400,699.48
  5. Step 5: Solve for x
    x = 68,400,699.48/7,025.40
  6. Step 6: Final answer
    x = 9,736.20

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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.