Home / 7,852.40-10,836.88-5,195.20

Finding the Fourth Proportional to 7,852.40, 10,836.88 and 5,195.20

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Solution

The fourth proportional to 7,852.40, 10,836.88 and 5,195.20 is: 7,169.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,852.40 : 10,836.88 = 5,195.20 : x
  2. Step 2: Convert to fraction form
    7,852.40/10,836.88 = 5,195.20/x
  3. Step 3: Cross multiply
    7,852.40x = 10,836.88 × 5,195.20
  4. Step 4: Simplify right side
    7,852.40x = 56,299,758.98
  5. Step 5: Solve for x
    x = 56,299,758.98/7,852.40
  6. Step 6: Final answer
    x = 7,169.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.