Home / 14,047.24-21,070.71-8,120.35

Finding the Fourth Proportional to 14,047.24, 21,070.71 and 8,120.35

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Solution

The fourth proportional to 14,047.24, 21,070.71 and 8,120.35 is: 12,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,047.24 : 21,070.71 = 8,120.35 : x
  2. Step 2: Convert to fraction form
    14,047.24/21,070.71 = 8,120.35/x
  3. Step 3: Cross multiply
    14,047.24x = 21,070.71 × 8,120.35
  4. Step 4: Simplify right side
    14,047.24x = 171,101,499.35
  5. Step 5: Solve for x
    x = 171,101,499.35/14,047.24
  6. Step 6: Final answer
    x = 12,180.44

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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.