Home / 10,087.12-15,130.86-3,513.43

Finding the Fourth Proportional to 10,087.12, 15,130.86 and 3,513.43

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Solution

The fourth proportional to 10,087.12, 15,130.86 and 3,513.43 is: 5,270.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,087.12 : 15,130.86 = 3,513.43 : x
  2. Step 2: Convert to fraction form
    10,087.12/15,130.86 = 3,513.43/x
  3. Step 3: Cross multiply
    10,087.12x = 15,130.86 × 3,513.43
  4. Step 4: Simplify right side
    10,087.12x = 53,161,217.45
  5. Step 5: Solve for x
    x = 53,161,217.45/10,087.12
  6. Step 6: Final answer
    x = 5,270.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.