Home / 9,820.10-14,730.15-4,279.70

Finding the Fourth Proportional to 9,820.10, 14,730.15 and 4,279.70

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Solution

The fourth proportional to 9,820.10, 14,730.15 and 4,279.70 is: 6,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,820.10 : 14,730.15 = 4,279.70 : x
  2. Step 2: Convert to fraction form
    9,820.10/14,730.15 = 4,279.70/x
  3. Step 3: Cross multiply
    9,820.10x = 14,730.15 × 4,279.70
  4. Step 4: Simplify right side
    9,820.10x = 63,040,622.96
  5. Step 5: Solve for x
    x = 63,040,622.96/9,820.10
  6. Step 6: Final answer
    x = 6,419.55

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Similar ratio
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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.