Home / 7,847.18-10,829.40-4,702.76

Finding the Fourth Proportional to 7,847.18, 10,829.40 and 4,702.76

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Solution

The fourth proportional to 7,847.18, 10,829.40 and 4,702.76 is: 6,489.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.18 : 10,829.40 = 4,702.76 : x
  2. Step 2: Convert to fraction form
    7,847.18/10,829.40 = 4,702.76/x
  3. Step 3: Cross multiply
    7,847.18x = 10,829.40 × 4,702.76
  4. Step 4: Simplify right side
    7,847.18x = 50,928,069.14
  5. Step 5: Solve for x
    x = 50,928,069.14/7,847.18
  6. Step 6: Final answer
    x = 6,489.98

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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.