Home / 8,457.95-12,688.32-2,909.96

Finding the Fourth Proportional to 8,457.95, 12,688.32 and 2,909.96

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Solution

The fourth proportional to 8,457.95, 12,688.32 and 2,909.96 is: 4,365.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.95 : 12,688.32 = 2,909.96 : x
  2. Step 2: Convert to fraction form
    8,457.95/12,688.32 = 2,909.96/x
  3. Step 3: Cross multiply
    8,457.95x = 12,688.32 × 2,909.96
  4. Step 4: Simplify right side
    8,457.95x = 36,922,440.23
  5. Step 5: Solve for x
    x = 36,922,440.23/8,457.95
  6. Step 6: Final answer
    x = 4,365.41

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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.