Home / 6,742.20-10,113.30-4,657.80

Finding the Fourth Proportional to 6,742.20, 10,113.30 and 4,657.80

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Solution

The fourth proportional to 6,742.20, 10,113.30 and 4,657.80 is: 6,986.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,742.20 : 10,113.30 = 4,657.80 : x
  2. Step 2: Convert to fraction form
    6,742.20/10,113.30 = 4,657.80/x
  3. Step 3: Cross multiply
    6,742.20x = 10,113.30 × 4,657.80
  4. Step 4: Simplify right side
    6,742.20x = 47,105,728.74
  5. Step 5: Solve for x
    x = 47,105,728.74/6,742.20
  6. Step 6: Final answer
    x = 6,986.70

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Double scale
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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.