Home / 8,742.76-13,103.52-4,056.40

Finding the Fourth Proportional to 8,742.76, 13,103.52 and 4,056.40

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Solution

The fourth proportional to 8,742.76, 13,103.52 and 4,056.40 is: 6,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.76 : 13,103.52 = 4,056.40 : x
  2. Step 2: Convert to fraction form
    8,742.76/13,103.52 = 4,056.40/x
  3. Step 3: Cross multiply
    8,742.76x = 13,103.52 × 4,056.40
  4. Step 4: Simplify right side
    8,742.76x = 53,153,118.53
  5. Step 5: Solve for x
    x = 53,153,118.53/8,742.76
  6. Step 6: Final answer
    x = 6,079.67

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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.