Home / 8,971.21-13,457.28-2,730.74

Finding the Fourth Proportional to 8,971.21, 13,457.28 and 2,730.74

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Solution

The fourth proportional to 8,971.21, 13,457.28 and 2,730.74 is: 4,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,971.21 : 13,457.28 = 2,730.74 : x
  2. Step 2: Convert to fraction form
    8,971.21/13,457.28 = 2,730.74/x
  3. Step 3: Cross multiply
    8,971.21x = 13,457.28 × 2,730.74
  4. Step 4: Simplify right side
    8,971.21x = 36,748,332.79
  5. Step 5: Solve for x
    x = 36,748,332.79/8,971.21
  6. Step 6: Final answer
    x = 4,096.25

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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.