Home / 8,258.40-12,386.88-4,793.76

Finding the Fourth Proportional to 8,258.40, 12,386.88 and 4,793.76

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Solution

The fourth proportional to 8,258.40, 12,386.88 and 4,793.76 is: 7,190.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.40 : 12,386.88 = 4,793.76 : x
  2. Step 2: Convert to fraction form
    8,258.40/12,386.88 = 4,793.76/x
  3. Step 3: Cross multiply
    8,258.40x = 12,386.88 × 4,793.76
  4. Step 4: Simplify right side
    8,258.40x = 59,379,729.87
  5. Step 5: Solve for x
    x = 59,379,729.87/8,258.40
  6. Step 6: Final answer
    x = 7,190.22

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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.