Home / 7,849.20-10,829.70-4,865.16

Finding the Fourth Proportional to 7,849.20, 10,829.70 and 4,865.16

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Solution

The fourth proportional to 7,849.20, 10,829.70 and 4,865.16 is: 6,712.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,849.20 : 10,829.70 = 4,865.16 : x
  2. Step 2: Convert to fraction form
    7,849.20/10,829.70 = 4,865.16/x
  3. Step 3: Cross multiply
    7,849.20x = 10,829.70 × 4,865.16
  4. Step 4: Simplify right side
    7,849.20x = 52,688,223.25
  5. Step 5: Solve for x
    x = 52,688,223.25/7,849.20
  6. Step 6: Final answer
    x = 6,712.56

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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.