Home / 10,130.85-15,183.96-7,170.15

Finding the Fourth Proportional to 10,130.85, 15,183.96 and 7,170.15

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Solution

The fourth proportional to 10,130.85, 15,183.96 and 7,170.15 is: 10,746.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.85 : 15,183.96 = 7,170.15 : x
  2. Step 2: Convert to fraction form
    10,130.85/15,183.96 = 7,170.15/x
  3. Step 3: Cross multiply
    10,130.85x = 15,183.96 × 7,170.15
  4. Step 4: Simplify right side
    10,130.85x = 108,871,291.50
  5. Step 5: Solve for x
    x = 108,871,291.50/10,130.85
  6. Step 6: Final answer
    x = 10,746.52

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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.