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Finding the Fourth Proportional to 10,775.20, 14,870.10 and 6,302.20

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Solution

The fourth proportional to 10,775.20, 14,870.10 and 6,302.20 is: 8,697.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,775.20 : 14,870.10 = 6,302.20 : x
  2. Step 2: Convert to fraction form
    10,775.20/14,870.10 = 6,302.20/x
  3. Step 3: Cross multiply
    10,775.20x = 14,870.10 × 6,302.20
  4. Step 4: Simplify right side
    10,775.20x = 93,714,344.22
  5. Step 5: Solve for x
    x = 93,714,344.22/10,775.20
  6. Step 6: Final answer
    x = 8,697.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.