Home / 7,012.64-9,677.04-4,217.60

Finding the Fourth Proportional to 7,012.64, 9,677.04 and 4,217.60

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Solution

The fourth proportional to 7,012.64, 9,677.04 and 4,217.60 is: 5,820.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.64 : 9,677.04 = 4,217.60 : x
  2. Step 2: Convert to fraction form
    7,012.64/9,677.04 = 4,217.60/x
  3. Step 3: Cross multiply
    7,012.64x = 9,677.04 × 4,217.60
  4. Step 4: Simplify right side
    7,012.64x = 40,813,883.90
  5. Step 5: Solve for x
    x = 40,813,883.90/7,012.64
  6. Step 6: Final answer
    x = 5,820.05

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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.