Home / 7,486.43-10,331.15-4,129.52

Finding the Fourth Proportional to 7,486.43, 10,331.15 and 4,129.52

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Solution

The fourth proportional to 7,486.43, 10,331.15 and 4,129.52 is: 5,698.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.43 : 10,331.15 = 4,129.52 : x
  2. Step 2: Convert to fraction form
    7,486.43/10,331.15 = 4,129.52/x
  3. Step 3: Cross multiply
    7,486.43x = 10,331.15 × 4,129.52
  4. Step 4: Simplify right side
    7,486.43x = 42,662,618.24
  5. Step 5: Solve for x
    x = 42,662,618.24/7,486.43
  6. Step 6: Final answer
    x = 5,698.66

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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.