Home / 9,057.60-12,506.40-6,271.20

Finding the Fourth Proportional to 9,057.60, 12,506.40 and 6,271.20

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Solution

The fourth proportional to 9,057.60, 12,506.40 and 6,271.20 is: 8,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,057.60 : 12,506.40 = 6,271.20 : x
  2. Step 2: Convert to fraction form
    9,057.60/12,506.40 = 6,271.20/x
  3. Step 3: Cross multiply
    9,057.60x = 12,506.40 × 6,271.20
  4. Step 4: Simplify right side
    9,057.60x = 78,430,135.68
  5. Step 5: Solve for x
    x = 78,430,135.68/9,057.60
  6. Step 6: Final answer
    x = 8,659.04

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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.