Home / 7,486.20-10,332.90-4,505.40

Finding the Fourth Proportional to 7,486.20, 10,332.90 and 4,505.40

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Solution

The fourth proportional to 7,486.20, 10,332.90 and 4,505.40 is: 6,218.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.20 : 10,332.90 = 4,505.40 : x
  2. Step 2: Convert to fraction form
    7,486.20/10,332.90 = 4,505.40/x
  3. Step 3: Cross multiply
    7,486.20x = 10,332.90 × 4,505.40
  4. Step 4: Simplify right side
    7,486.20x = 46,553,847.66
  5. Step 5: Solve for x
    x = 46,553,847.66/7,486.20
  6. Step 6: Final answer
    x = 6,218.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.