Home / 6,688.20-10,056.60-6,542.40

Finding the Fourth Proportional to 6,688.20, 10,056.60 and 6,542.40

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Solution

The fourth proportional to 6,688.20, 10,056.60 and 6,542.40 is: 9,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,688.20 : 10,056.60 = 6,542.40 : x
  2. Step 2: Convert to fraction form
    6,688.20/10,056.60 = 6,542.40/x
  3. Step 3: Cross multiply
    6,688.20x = 10,056.60 × 6,542.40
  4. Step 4: Simplify right side
    6,688.20x = 65,794,299.84
  5. Step 5: Solve for x
    x = 65,794,299.84/6,688.20
  6. Step 6: Final answer
    x = 9,837.37

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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.