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Finding the Fourth Proportional to 8,870.60, 13,305.15 and 2,714.60

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Solution

The fourth proportional to 8,870.60, 13,305.15 and 2,714.60 is: 4,071.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,870.60 : 13,305.15 = 2,714.60 : x
  2. Step 2: Convert to fraction form
    8,870.60/13,305.15 = 2,714.60/x
  3. Step 3: Cross multiply
    8,870.60x = 13,305.15 × 2,714.60
  4. Step 4: Simplify right side
    8,870.60x = 36,118,160.19
  5. Step 5: Solve for x
    x = 36,118,160.19/8,870.60
  6. Step 6: Final answer
    x = 4,071.67

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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.