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Finding the Fourth Proportional to 9,802.60, 14,679.60 and 6,287.20

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Solution

The fourth proportional to 9,802.60, 14,679.60 and 6,287.20 is: 9,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,802.60 : 14,679.60 = 6,287.20 : x
  2. Step 2: Convert to fraction form
    9,802.60/14,679.60 = 6,287.20/x
  3. Step 3: Cross multiply
    9,802.60x = 14,679.60 × 6,287.20
  4. Step 4: Simplify right side
    9,802.60x = 92,293,581.12
  5. Step 5: Solve for x
    x = 92,293,581.12/9,802.60
  6. Step 6: Final answer
    x = 9,415.21

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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.