Home / 10,140.54-15,204.30-4,221.53

Finding the Fourth Proportional to 10,140.54, 15,204.30 and 4,221.53

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Solution

The fourth proportional to 10,140.54, 15,204.30 and 4,221.53 is: 6,329.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.54 : 15,204.30 = 4,221.53 : x
  2. Step 2: Convert to fraction form
    10,140.54/15,204.30 = 4,221.53/x
  3. Step 3: Cross multiply
    10,140.54x = 15,204.30 × 4,221.53
  4. Step 4: Simplify right side
    10,140.54x = 64,185,332.56
  5. Step 5: Solve for x
    x = 64,185,332.56/10,140.54
  6. Step 6: Final answer
    x = 6,329.58

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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.