Home / 6,815.40-10,232.70-5,356.20

Finding the Fourth Proportional to 6,815.40, 10,232.70 and 5,356.20

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Solution

The fourth proportional to 6,815.40, 10,232.70 and 5,356.20 is: 8,041.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,815.40 : 10,232.70 = 5,356.20 : x
  2. Step 2: Convert to fraction form
    6,815.40/10,232.70 = 5,356.20/x
  3. Step 3: Cross multiply
    6,815.40x = 10,232.70 × 5,356.20
  4. Step 4: Simplify right side
    6,815.40x = 54,808,387.74
  5. Step 5: Solve for x
    x = 54,808,387.74/6,815.40
  6. Step 6: Final answer
    x = 8,041.84

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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.