Home / 6,312.50-8,711.43-3,518.18

Finding the Fourth Proportional to 6,312.50, 8,711.43 and 3,518.18

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Solution

The fourth proportional to 6,312.50, 8,711.43 and 3,518.18 is: 4,855.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.50 : 8,711.43 = 3,518.18 : x
  2. Step 2: Convert to fraction form
    6,312.50/8,711.43 = 3,518.18/x
  3. Step 3: Cross multiply
    6,312.50x = 8,711.43 × 3,518.18
  4. Step 4: Simplify right side
    6,312.50x = 30,648,378.80
  5. Step 5: Solve for x
    x = 30,648,378.80/6,312.50
  6. Step 6: Final answer
    x = 4,855.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.