Home / 15,723.56-21,698.51-9,435.94

Finding the Fourth Proportional to 15,723.56, 21,698.51 and 9,435.94

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Solution

The fourth proportional to 15,723.56, 21,698.51 and 9,435.94 is: 13,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.56 : 21,698.51 = 9,435.94 : x
  2. Step 2: Convert to fraction form
    15,723.56/21,698.51 = 9,435.94/x
  3. Step 3: Cross multiply
    15,723.56x = 21,698.51 × 9,435.94
  4. Step 4: Simplify right side
    15,723.56x = 204,745,838.45
  5. Step 5: Solve for x
    x = 204,745,838.45/15,723.56
  6. Step 6: Final answer
    x = 13,021.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.