Home / 10,221.30-15,328.35-4,677.30

Finding the Fourth Proportional to 10,221.30, 15,328.35 and 4,677.30

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Solution

The fourth proportional to 10,221.30, 15,328.35 and 4,677.30 is: 7,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.30 : 15,328.35 = 4,677.30 : x
  2. Step 2: Convert to fraction form
    10,221.30/15,328.35 = 4,677.30/x
  3. Step 3: Cross multiply
    10,221.30x = 15,328.35 × 4,677.30
  4. Step 4: Simplify right side
    10,221.30x = 71,695,291.46
  5. Step 5: Solve for x
    x = 71,695,291.46/10,221.30
  6. Step 6: Final answer
    x = 7,014.30

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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.