Home / 7,486.70-10,331.45-4,129.46

Finding the Fourth Proportional to 7,486.70, 10,331.45 and 4,129.46

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Solution

The fourth proportional to 7,486.70, 10,331.45 and 4,129.46 is: 5,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.70 : 10,331.45 = 4,129.46 : x
  2. Step 2: Convert to fraction form
    7,486.70/10,331.45 = 4,129.46/x
  3. Step 3: Cross multiply
    7,486.70x = 10,331.45 × 4,129.46
  4. Step 4: Simplify right side
    7,486.70x = 42,663,309.52
  5. Step 5: Solve for x
    x = 42,663,309.52/7,486.70
  6. Step 6: Final answer
    x = 5,698.55

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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.