Home / 10,021.56-15,011.80-5,629.80

Finding the Fourth Proportional to 10,021.56, 15,011.80 and 5,629.80

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Solution

The fourth proportional to 10,021.56, 15,011.80 and 5,629.80 is: 8,433.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.56 : 15,011.80 = 5,629.80 : x
  2. Step 2: Convert to fraction form
    10,021.56/15,011.80 = 5,629.80/x
  3. Step 3: Cross multiply
    10,021.56x = 15,011.80 × 5,629.80
  4. Step 4: Simplify right side
    10,021.56x = 84,513,431.64
  5. Step 5: Solve for x
    x = 84,513,431.64/10,021.56
  6. Step 6: Final answer
    x = 8,433.16

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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.