Home / 7,486.24-10,331.60-4,129.36

Finding the Fourth Proportional to 7,486.24, 10,331.60 and 4,129.36

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Solution

The fourth proportional to 7,486.24, 10,331.60 and 4,129.36 is: 5,698.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.24 : 10,331.60 = 4,129.36 : x
  2. Step 2: Convert to fraction form
    7,486.24/10,331.60 = 4,129.36/x
  3. Step 3: Cross multiply
    7,486.24x = 10,331.60 × 4,129.36
  4. Step 4: Simplify right side
    7,486.24x = 42,662,895.78
  5. Step 5: Solve for x
    x = 42,662,895.78/7,486.24
  6. Step 6: Final answer
    x = 5,698.84

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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.