Home / 15,021.57-22,507.68-5,155.47

Finding the Fourth Proportional to 15,021.57, 22,507.68 and 5,155.47

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Solution

The fourth proportional to 15,021.57, 22,507.68 and 5,155.47 is: 7,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.57 : 22,507.68 = 5,155.47 : x
  2. Step 2: Convert to fraction form
    15,021.57/22,507.68 = 5,155.47/x
  3. Step 3: Cross multiply
    15,021.57x = 22,507.68 × 5,155.47
  4. Step 4: Simplify right side
    15,021.57x = 116,037,669.01
  5. Step 5: Solve for x
    x = 116,037,669.01/15,021.57
  6. Step 6: Final answer
    x = 7,724.74

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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.