Home / 10,484.64-15,720.48-3,555.36

Finding the Fourth Proportional to 10,484.64, 15,720.48 and 3,555.36

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Solution

The fourth proportional to 10,484.64, 15,720.48 and 3,555.36 is: 5,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,484.64 : 15,720.48 = 3,555.36 : x
  2. Step 2: Convert to fraction form
    10,484.64/15,720.48 = 3,555.36/x
  3. Step 3: Cross multiply
    10,484.64x = 15,720.48 × 3,555.36
  4. Step 4: Simplify right side
    10,484.64x = 55,891,965.77
  5. Step 5: Solve for x
    x = 55,891,965.77/10,484.64
  6. Step 6: Final answer
    x = 5,330.84

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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.