Home / 7,486.60-10,331.52-4,129.63

Finding the Fourth Proportional to 7,486.60, 10,331.52 and 4,129.63

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Solution

The fourth proportional to 7,486.60, 10,331.52 and 4,129.63 is: 5,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.60 : 10,331.52 = 4,129.63 : x
  2. Step 2: Convert to fraction form
    7,486.60/10,331.52 = 4,129.63/x
  3. Step 3: Cross multiply
    7,486.60x = 10,331.52 × 4,129.63
  4. Step 4: Simplify right side
    7,486.60x = 42,665,406.58
  5. Step 5: Solve for x
    x = 42,665,406.58/7,486.60
  6. Step 6: Final answer
    x = 5,698.90

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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.