Home / 10,455.96-15,680.63-3,434.34

Finding the Fourth Proportional to 10,455.96, 15,680.63 and 3,434.34

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Solution

The fourth proportional to 10,455.96, 15,680.63 and 3,434.34 is: 5,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,455.96 : 15,680.63 = 3,434.34 : x
  2. Step 2: Convert to fraction form
    10,455.96/15,680.63 = 3,434.34/x
  3. Step 3: Cross multiply
    10,455.96x = 15,680.63 × 3,434.34
  4. Step 4: Simplify right side
    10,455.96x = 53,852,597.66
  5. Step 5: Solve for x
    x = 53,852,597.66/10,455.96
  6. Step 6: Final answer
    x = 5,150.42

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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.