Home / 10,655.54-15,990.59-5,465.06

Finding the Fourth Proportional to 10,655.54, 15,990.59 and 5,465.06

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Solution

The fourth proportional to 10,655.54, 15,990.59 and 5,465.06 is: 8,201.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.54 : 15,990.59 = 5,465.06 : x
  2. Step 2: Convert to fraction form
    10,655.54/15,990.59 = 5,465.06/x
  3. Step 3: Cross multiply
    10,655.54x = 15,990.59 × 5,465.06
  4. Step 4: Simplify right side
    10,655.54x = 87,389,467.50
  5. Step 5: Solve for x
    x = 87,389,467.50/10,655.54
  6. Step 6: Final answer
    x = 8,201.32

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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.