Home / 14,103.45-21,155.13-4,242.71

Finding the Fourth Proportional to 14,103.45, 21,155.13 and 4,242.71

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Solution

The fourth proportional to 14,103.45, 21,155.13 and 4,242.71 is: 6,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,103.45 : 21,155.13 = 4,242.71 : x
  2. Step 2: Convert to fraction form
    14,103.45/21,155.13 = 4,242.71/x
  3. Step 3: Cross multiply
    14,103.45x = 21,155.13 × 4,242.71
  4. Step 4: Simplify right side
    14,103.45x = 89,755,134.49
  5. Step 5: Solve for x
    x = 89,755,134.49/14,103.45
  6. Step 6: Final answer
    x = 6,364.06

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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.