Home / 7,664.16-10,579.63-5,147.74

Finding the Fourth Proportional to 7,664.16, 10,579.63 and 5,147.74

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Solution

The fourth proportional to 7,664.16, 10,579.63 and 5,147.74 is: 7,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.16 : 10,579.63 = 5,147.74 : x
  2. Step 2: Convert to fraction form
    7,664.16/10,579.63 = 5,147.74/x
  3. Step 3: Cross multiply
    7,664.16x = 10,579.63 × 5,147.74
  4. Step 4: Simplify right side
    7,664.16x = 54,461,184.54
  5. Step 5: Solve for x
    x = 54,461,184.54/7,664.16
  6. Step 6: Final answer
    x = 7,105.96

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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.