Home / 14,506.13-20,018.85-8,218.46

Finding the Fourth Proportional to 14,506.13, 20,018.85 and 8,218.46

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Solution

The fourth proportional to 14,506.13, 20,018.85 and 8,218.46 is: 11,341.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.13 : 20,018.85 = 8,218.46 : x
  2. Step 2: Convert to fraction form
    14,506.13/20,018.85 = 8,218.46/x
  3. Step 3: Cross multiply
    14,506.13x = 20,018.85 × 8,218.46
  4. Step 4: Simplify right side
    14,506.13x = 164,524,117.97
  5. Step 5: Solve for x
    x = 164,524,117.97/14,506.13
  6. Step 6: Final answer
    x = 11,341.70

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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.