Home / 10,421.70-15,633.30-3,848.40

Finding the Fourth Proportional to 10,421.70, 15,633.30 and 3,848.40

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Solution

The fourth proportional to 10,421.70, 15,633.30 and 3,848.40 is: 5,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.70 : 15,633.30 = 3,848.40 : x
  2. Step 2: Convert to fraction form
    10,421.70/15,633.30 = 3,848.40/x
  3. Step 3: Cross multiply
    10,421.70x = 15,633.30 × 3,848.40
  4. Step 4: Simplify right side
    10,421.70x = 60,163,191.72
  5. Step 5: Solve for x
    x = 60,163,191.72/10,421.70
  6. Step 6: Final answer
    x = 5,772.88

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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.