Home / 10,130.80-15,205.20-5,965.60

Finding the Fourth Proportional to 10,130.80, 15,205.20 and 5,965.60

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Solution

The fourth proportional to 10,130.80, 15,205.20 and 5,965.60 is: 8,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.80 : 15,205.20 = 5,965.60 : x
  2. Step 2: Convert to fraction form
    10,130.80/15,205.20 = 5,965.60/x
  3. Step 3: Cross multiply
    10,130.80x = 15,205.20 × 5,965.60
  4. Step 4: Simplify right side
    10,130.80x = 90,708,141.12
  5. Step 5: Solve for x
    x = 90,708,141.12/10,130.80
  6. Step 6: Final answer
    x = 8,953.70

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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.