Home / 7,486.75-10,331.51-4,129.50

Finding the Fourth Proportional to 7,486.75, 10,331.51 and 4,129.50

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Solution

The fourth proportional to 7,486.75, 10,331.51 and 4,129.50 is: 5,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.75 : 10,331.51 = 4,129.50 : x
  2. Step 2: Convert to fraction form
    7,486.75/10,331.51 = 4,129.50/x
  3. Step 3: Cross multiply
    7,486.75x = 10,331.51 × 4,129.50
  4. Step 4: Simplify right side
    7,486.75x = 42,663,970.55
  5. Step 5: Solve for x
    x = 42,663,970.55/7,486.75
  6. Step 6: Final answer
    x = 5,698.60

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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.