Home / 15,423.41-21,273.30-10,645.16

Finding the Fourth Proportional to 15,423.41, 21,273.30 and 10,645.16

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Solution

The fourth proportional to 15,423.41, 21,273.30 and 10,645.16 is: 14,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.41 : 21,273.30 = 10,645.16 : x
  2. Step 2: Convert to fraction form
    15,423.41/21,273.30 = 10,645.16/x
  3. Step 3: Cross multiply
    15,423.41x = 21,273.30 × 10,645.16
  4. Step 4: Simplify right side
    15,423.41x = 226,457,735.41
  5. Step 5: Solve for x
    x = 226,457,735.41/15,423.41
  6. Step 6: Final answer
    x = 14,682.73

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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.