Home / 8,312.50-12,457.97-3,376.40

Finding the Fourth Proportional to 8,312.50, 12,457.97 and 3,376.40

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Solution

The fourth proportional to 8,312.50, 12,457.97 and 3,376.40 is: 5,060.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.50 : 12,457.97 = 3,376.40 : x
  2. Step 2: Convert to fraction form
    8,312.50/12,457.97 = 3,376.40/x
  3. Step 3: Cross multiply
    8,312.50x = 12,457.97 × 3,376.40
  4. Step 4: Simplify right side
    8,312.50x = 42,063,073.03
  5. Step 5: Solve for x
    x = 42,063,073.03/8,312.50
  6. Step 6: Final answer
    x = 5,060.22

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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.