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Finding the Fourth Proportional to 6,460.60, 9,705.30 and 6,287.80

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Solution

The fourth proportional to 6,460.60, 9,705.30 and 6,287.80 is: 9,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,460.60 : 9,705.30 = 6,287.80 : x
  2. Step 2: Convert to fraction form
    6,460.60/9,705.30 = 6,287.80/x
  3. Step 3: Cross multiply
    6,460.60x = 9,705.30 × 6,287.80
  4. Step 4: Simplify right side
    6,460.60x = 61,024,985.34
  5. Step 5: Solve for x
    x = 61,024,985.34/6,460.60
  6. Step 6: Final answer
    x = 9,445.71

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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.