Home / 10,140.04-15,203.55-4,221.03

Finding the Fourth Proportional to 10,140.04, 15,203.55 and 4,221.03

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Solution

The fourth proportional to 10,140.04, 15,203.55 and 4,221.03 is: 6,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.04 : 15,203.55 = 4,221.03 : x
  2. Step 2: Convert to fraction form
    10,140.04/15,203.55 = 4,221.03/x
  3. Step 3: Cross multiply
    10,140.04x = 15,203.55 × 4,221.03
  4. Step 4: Simplify right side
    10,140.04x = 64,174,640.66
  5. Step 5: Solve for x
    x = 64,174,640.66/10,140.04
  6. Step 6: Final answer
    x = 6,328.84

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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.