Home / 10,130.40-15,195.60-5,756.40

Finding the Fourth Proportional to 10,130.40, 15,195.60 and 5,756.40

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Solution

The fourth proportional to 10,130.40, 15,195.60 and 5,756.40 is: 8,634.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.40 : 15,195.60 = 5,756.40 : x
  2. Step 2: Convert to fraction form
    10,130.40/15,195.60 = 5,756.40/x
  3. Step 3: Cross multiply
    10,130.40x = 15,195.60 × 5,756.40
  4. Step 4: Simplify right side
    10,130.40x = 87,471,951.84
  5. Step 5: Solve for x
    x = 87,471,951.84/10,130.40
  6. Step 6: Final answer
    x = 8,634.60

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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.