Home / 10,190.04-15,281.90-4,921.78

Finding the Fourth Proportional to 10,190.04, 15,281.90 and 4,921.78

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Solution

The fourth proportional to 10,190.04, 15,281.90 and 4,921.78 is: 7,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.04 : 15,281.90 = 4,921.78 : x
  2. Step 2: Convert to fraction form
    10,190.04/15,281.90 = 4,921.78/x
  3. Step 3: Cross multiply
    10,190.04x = 15,281.90 × 4,921.78
  4. Step 4: Simplify right side
    10,190.04x = 75,214,073.37
  5. Step 5: Solve for x
    x = 75,214,073.37/10,190.04
  6. Step 6: Final answer
    x = 7,381.14

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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.