Home / 7,648.21-10,549.20-4,998.70

Finding the Fourth Proportional to 7,648.21, 10,549.20 and 4,998.70

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Solution

The fourth proportional to 7,648.21, 10,549.20 and 4,998.70 is: 6,894.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648.21 : 10,549.20 = 4,998.70 : x
  2. Step 2: Convert to fraction form
    7,648.21/10,549.20 = 4,998.70/x
  3. Step 3: Cross multiply
    7,648.21x = 10,549.20 × 4,998.70
  4. Step 4: Simplify right side
    7,648.21x = 52,732,286.04
  5. Step 5: Solve for x
    x = 52,732,286.04/7,648.21
  6. Step 6: Final answer
    x = 6,894.72

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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.