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Finding the Fourth Proportional to 8,484.76, 12,733.31 and 6,407.34

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Solution

The fourth proportional to 8,484.76, 12,733.31 and 6,407.34 is: 9,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.76 : 12,733.31 = 6,407.34 : x
  2. Step 2: Convert to fraction form
    8,484.76/12,733.31 = 6,407.34/x
  3. Step 3: Cross multiply
    8,484.76x = 12,733.31 × 6,407.34
  4. Step 4: Simplify right side
    8,484.76x = 81,586,646.50
  5. Step 5: Solve for x
    x = 81,586,646.50/8,484.76
  6. Step 6: Final answer
    x = 9,615.67

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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.