Home / 7,486.20-10,331.02-4,129.15

Finding the Fourth Proportional to 7,486.20, 10,331.02 and 4,129.15

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Solution

The fourth proportional to 7,486.20, 10,331.02 and 4,129.15 is: 5,698.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.20 : 10,331.02 = 4,129.15 : x
  2. Step 2: Convert to fraction form
    7,486.20/10,331.02 = 4,129.15/x
  3. Step 3: Cross multiply
    7,486.20x = 10,331.02 × 4,129.15
  4. Step 4: Simplify right side
    7,486.20x = 42,658,331.23
  5. Step 5: Solve for x
    x = 42,658,331.23/7,486.20
  6. Step 6: Final answer
    x = 5,698.26

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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.