Home / 8,388.19-11,561.43-5,730.99

Finding the Fourth Proportional to 8,388.19, 11,561.43 and 5,730.99

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Solution

The fourth proportional to 8,388.19, 11,561.43 and 5,730.99 is: 7,899.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.19 : 11,561.43 = 5,730.99 : x
  2. Step 2: Convert to fraction form
    8,388.19/11,561.43 = 5,730.99/x
  3. Step 3: Cross multiply
    8,388.19x = 11,561.43 × 5,730.99
  4. Step 4: Simplify right side
    8,388.19x = 66,258,439.72
  5. Step 5: Solve for x
    x = 66,258,439.72/8,388.19
  6. Step 6: Final answer
    x = 7,899.02

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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.