Home / 7,113.77-10,661.47-3,408.29

Finding the Fourth Proportional to 7,113.77, 10,661.47 and 3,408.29

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Solution

The fourth proportional to 7,113.77, 10,661.47 and 3,408.29 is: 5,108.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.77 : 10,661.47 = 3,408.29 : x
  2. Step 2: Convert to fraction form
    7,113.77/10,661.47 = 3,408.29/x
  3. Step 3: Cross multiply
    7,113.77x = 10,661.47 × 3,408.29
  4. Step 4: Simplify right side
    7,113.77x = 36,337,319.76
  5. Step 5: Solve for x
    x = 36,337,319.76/7,113.77
  6. Step 6: Final answer
    x = 5,108.03

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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.