Home / 7,124.40-10,686.60-3,236.40

Finding the Fourth Proportional to 7,124.40, 10,686.60 and 3,236.40

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Solution

The fourth proportional to 7,124.40, 10,686.60 and 3,236.40 is: 4,854.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.40 : 10,686.60 = 3,236.40 : x
  2. Step 2: Convert to fraction form
    7,124.40/10,686.60 = 3,236.40/x
  3. Step 3: Cross multiply
    7,124.40x = 10,686.60 × 3,236.40
  4. Step 4: Simplify right side
    7,124.40x = 34,586,112.24
  5. Step 5: Solve for x
    x = 34,586,112.24/7,124.40
  6. Step 6: Final answer
    x = 4,854.60

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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.