Home / 15,018.41-20,726.19-8,645.96

Finding the Fourth Proportional to 15,018.41, 20,726.19 and 8,645.96

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Solution

The fourth proportional to 15,018.41, 20,726.19 and 8,645.96 is: 11,931.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.41 : 20,726.19 = 8,645.96 : x
  2. Step 2: Convert to fraction form
    15,018.41/20,726.19 = 8,645.96/x
  3. Step 3: Cross multiply
    15,018.41x = 20,726.19 × 8,645.96
  4. Step 4: Simplify right side
    15,018.41x = 179,197,809.69
  5. Step 5: Solve for x
    x = 179,197,809.69/15,018.41
  6. Step 6: Final answer
    x = 11,931.88

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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.