Home / 6,661.28-9,980.48-4,709.76

Finding the Fourth Proportional to 6,661.28, 9,980.48 and 4,709.76

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Solution

The fourth proportional to 6,661.28, 9,980.48 and 4,709.76 is: 7,056.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.28 : 9,980.48 = 4,709.76 : x
  2. Step 2: Convert to fraction form
    6,661.28/9,980.48 = 4,709.76/x
  3. Step 3: Cross multiply
    6,661.28x = 9,980.48 × 4,709.76
  4. Step 4: Simplify right side
    6,661.28x = 47,005,665.48
  5. Step 5: Solve for x
    x = 47,005,665.48/6,661.28
  6. Step 6: Final answer
    x = 7,056.55

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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.