Home / 8,312.18-12,457.87-4,153.35

Finding the Fourth Proportional to 8,312.18, 12,457.87 and 4,153.35

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Solution

The fourth proportional to 8,312.18, 12,457.87 and 4,153.35 is: 6,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.18 : 12,457.87 = 4,153.35 : x
  2. Step 2: Convert to fraction form
    8,312.18/12,457.87 = 4,153.35/x
  3. Step 3: Cross multiply
    8,312.18x = 12,457.87 × 4,153.35
  4. Step 4: Simplify right side
    8,312.18x = 51,741,883.98
  5. Step 5: Solve for x
    x = 51,741,883.98/8,312.18
  6. Step 6: Final answer
    x = 6,224.83

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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.