Home / 8,210.40-12,317.56-2,663.76

Finding the Fourth Proportional to 8,210.40, 12,317.56 and 2,663.76

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Solution

The fourth proportional to 8,210.40, 12,317.56 and 2,663.76 is: 3,996.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.40 : 12,317.56 = 2,663.76 : x
  2. Step 2: Convert to fraction form
    8,210.40/12,317.56 = 2,663.76/x
  3. Step 3: Cross multiply
    8,210.40x = 12,317.56 × 2,663.76
  4. Step 4: Simplify right side
    8,210.40x = 32,811,023.63
  5. Step 5: Solve for x
    x = 32,811,023.63/8,210.40
  6. Step 6: Final answer
    x = 3,996.28

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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.