Home / 8,466.40-12,699.60-5,528.80

Finding the Fourth Proportional to 8,466.40, 12,699.60 and 5,528.80

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Solution

The fourth proportional to 8,466.40, 12,699.60 and 5,528.80 is: 8,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,466.40 : 12,699.60 = 5,528.80 : x
  2. Step 2: Convert to fraction form
    8,466.40/12,699.60 = 5,528.80/x
  3. Step 3: Cross multiply
    8,466.40x = 12,699.60 × 5,528.80
  4. Step 4: Simplify right side
    8,466.40x = 70,213,548.48
  5. Step 5: Solve for x
    x = 70,213,548.48/8,466.40
  6. Step 6: Final answer
    x = 8,293.20

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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.