Home / 8,116.80-12,175.20-5,492.40

Finding the Fourth Proportional to 8,116.80, 12,175.20 and 5,492.40

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Solution

The fourth proportional to 8,116.80, 12,175.20 and 5,492.40 is: 8,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.80 : 12,175.20 = 5,492.40 : x
  2. Step 2: Convert to fraction form
    8,116.80/12,175.20 = 5,492.40/x
  3. Step 3: Cross multiply
    8,116.80x = 12,175.20 × 5,492.40
  4. Step 4: Simplify right side
    8,116.80x = 66,871,068.48
  5. Step 5: Solve for x
    x = 66,871,068.48/8,116.80
  6. Step 6: Final answer
    x = 8,238.60

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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.